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{{Short description|Japanese Haitian-American tennis player (born 1997)}}
{{good article}}
{{For|the documentary miniseries|Naomi Osaka (TV series)}}
{{short description|tennis player}}
{{Japanese name|Ōsaka}}
{{Eastern name order|Ōsaka Naomi}}
{{Good article}}
{{Use American English|date=June 2021}}
{{Use mdy dates|date=October 2024}}
{{Infobox tennis biography
{{Infobox tennis biography
| name = Naomi Osaka
| name = Naomi Osaka
| image = Naomi Osaka (42000394394).jpg
| image = NaomiOsaka-smile-2020 (cropped tight).png
| alt = Naomi Osaka smiling during her match against Azarenka in the 2020 US Open.
| image_size =
| caption = Naomi Osaka on June 10, 2018
| caption = Osaka at the [[2020 US Open (tennis)|2020 US Open]]
| country = {{JPN}}
| country = {{JPN}}
| residence = [[Boca Raton, Florida]], United States
| residence = [[Beverly Hills, California]], United States
| birth_date = {{birth date and age|1997|10|16|mf=yes}}
| birth_date = {{Birth date and age|1997|10|16}}
| birth_place = [[Chūō-ku, Osaka|Chūō-ku]], [[Osaka]], Japan
| birth_place = [[Chūō-ku, Osaka]], Japan
| height = {{convert|1.80|m|ftin|abbr=on}}
| height = 1.80 m
| careerprizemoney = $22,047,163<ref>{{Cite web |title=Career Prize Money Leaders |url=https://wtafiles.wtatennis.com/pdf/rankings/All_Career_Prize_Money.pdf |access-date=January 1, 2025 |publisher=WTA Tennis}}</ref>
| careerprizemoney = $11,351,973
* [[WTA Tour records#WTA career prize money leaders|21st in all-time rankings]]
| website = [http://www.naomiosaka.com/en/ naomiosaka.com]
| plays = Right-handed (two-handed backhand)
| website = [http://www.naomiosaka.com/en/ naomiosaka.com]
| coach = Leonard Francois (2019–)
| plays = Right
| turnedpro = September 2013
| coach = [[Patrick Mouratoglou]] (2024–)
| singlesrecord = {{tennis record|won=199|lost=126}}
| turnedpro = October 2012
| singlesrecord = {{tennis record|won=287|lost=166}}
| singlestitles = 4 [[Women's Tennis Association|WTA]], 0 [[International Tennis Federation|ITF]]
| highestsinglesranking = [[List of WTA number 1 ranked tennis players|No. '''1''']] (January 28, 2019)
| singlestitles = 7
| highestsinglesranking = [[List of WTA number 1 ranked singles tennis players|No. '''1''']] (28 January 2019)
| currentsinglesranking = No. 4 (September 9, 2019)
| currentsinglesranking = No. 50 (6 January 2025)
| AustralianOpenresult = '''W''' ([[2019 Australian Open – Women's Singles|2019]])
| AustralianOpenresult = '''W''' ([[2019 Australian Open – Women's singles|2019]], [[2021 Australian Open – Women's singles|2021]])
| FrenchOpenresult = 3R ([[2016 French Open – Women's Singles|2016]], [[2018 French Open – Women's Singles|2018]], [[2019 French Open – Women's Singles|2019]])
| FrenchOpenresult = 3R ([[2016 French Open – Women's singles|2016]], [[2018 French Open – Women's singles|2018]], [[2019 French Open – Women's singles|2019]])
| Wimbledonresult = 3R ([[2017 Wimbledon Championships – Women's Singles|2017]], [[2018 Wimbledon Championships – Women's Singles|2018]])
| Wimbledonresult = 3R ([[2017 Wimbledon Championships – Women's singles|2017]], [[2018 Wimbledon Championships – Women's singles|2018]])
| USOpenresult = '''W''' ([[2018 US Open – Women's Singles|2018]])
| USOpenresult = '''W''' ([[2018 US Open – Women's singles|2018]], [[2020 US Open – Women's singles|2020]])
| Othertournaments = yes
| Othertournaments = yes
| WTAChampionshipsresult = RR ([[2018 WTA Finals – Singles|2018]])
| WTAChampionshipsresult = RR ([[2018 WTA Finals – Singles|2018]], [[2019 WTA Finals – Singles|2019]])
| Olympicsresult = 3R ([[Tennis at the 2020 Summer Olympics – Women's singles|2020]])
| doublesrecord = {{tennis record|won=2|lost=14}}
| doublesrecord = {{tennis record|won=2|lost=15}}
| doublestitles = 0
| doublestitles = 0
| highestdoublesranking = No. 324 (April 3, 2017)
| highestdoublesranking = No. 324 (3 April 2017)
| currentdoublesranking =
| AustralianOpenDoublesresult = 1R ([[2017 Australian Open – Women's Doubles|2017]])
| AustralianOpenDoublesresult = 1R ([[2017 Australian Open – Women's doubles|2017]])
| FrenchOpenDoublesresult = 2R ([[2016 French Open – Women's Doubles|2016]])
| FrenchOpenDoublesresult = 2R ([[2016 French Open – Women's doubles|2016]])
| WimbledonDoublesresult = 1R ([[2017 Wimbledon Championships – Women's Doubles|2017]])
| WimbledonDoublesresult = 1R ([[2017 Wimbledon Championships – Women's doubles|2017]])
| USOpenDoublesresult = 1R ([[2016 US Open – Women's Doubles|2016]])
| USOpenDoublesresult = 1R ([[2016 US Open – Women's doubles|2016]], [[2017 US Open – Women's doubles|2017]])
| Team = yes
| Team = yes
| FedCupresult = WG II PO ([[2018 Fed Cup|2018]])
| FedCupresult = WG II PO (2018)
| HopmanCupresult = RR ([[2018 Hopman Cup|2018]])
| HopmanCupresult = RR (2018)
| updated = June 10, 2018
| updated = 1 January 2025
}}
}}


{{Nihongo|'''Naomi Osaka'''|大坂 なおみ {{IPA-ja|o̞ːsäkä näo̞mʲi}}|Ōsaka Naomi|extra=born October 16, 1997}} is a professional [[tennis]] player who represents Japan. She is the reigning champion in women's singles at the [[Australian Open]]. Osaka is formerly [[List of WTA number 1 ranked tennis players|ranked No. 1]] and currently ranked No. 4 by the [[Women's Tennis Association]] (WTA). She is the first Asian player to hold the top ranking in singles. She has won four titles and reached six finals on the WTA Tour.
{{Nihongo|'''Naomi Osaka'''|大坂 なおみ|Ōsaka Naomi|lead=yes|{{IPA|ja|oːsaka naomi}}, born October 16, 1997}} is a Japanese professional [[tennis]] player. She has been ranked [[List of WTA number 1 ranked singles tennis players|world No. 1]] in singles by the [[Women's Tennis Association]] (WTA) and is the first Asian player to hold the top ranking in singles. Osaka is a four-time [[Grand Slam (tennis)|Grand Slam]] singles champion, with two [[Australian Open]] and two [[US Open (tennis)|US Open]] titles. Her seven titles on the [[WTA Tour]] include two at the Premier Mandatory level. At the [[2018 US Open – Women's singles|2018 US Open]] and the [[2019 Australian Open – Women's singles|2019 Australian Open]], Osaka won her first two major titles in back-to-back tournaments, becoming the first Japanese player to win a major singles title and the first woman to win successive major singles titles since [[Serena Williams]] in 2015.


Born in Japan to a Haitian father and a Japanese mother, Osaka has lived in the United States since she was three years old. She came to prominence at the age of sixteen when she defeated former US Open champion [[Samantha Stosur]] in her WTA Tour debut at the [[2014 Bank of the West Classic|2014 Stanford Classic]]. Two years later, she reached her first WTA final at the [[2016 Toray Pan Pacific Open|2016 Pan Pacific Open]] in Japan to enter the top 50 of the WTA rankings. Osaka made her breakthrough into the upper echelon of women's tennis in 2018, when she won her first WTA title at the [[2018 BNP Paribas Open|Indian Wells Open]]. In September of 2018, she won the [[2018 US Open (tennis)|US Open]], defeating 23-time major champion [[Serena Williams]] in the [[2018 US Open Women's Singles final|final]] to become the first Japanese player to win a [[Grand Slam (tennis)|Grand Slam]] singles tournament. She won her second Grand Slam title at the [[2019 Australian Open]].
Born in Japan to a Haitian-American father and a Japanese mother, Osaka has lived and trained in the United States since age three. She came to prominence at age 16 when she defeated former US Open champion [[Samantha Stosur]] in her WTA Tour debut at the [[2014 Bank of the West Classic – Singles|2014 Stanford Classic]]. Two years later, she reached her first WTA final at the [[2016 Toray Pan Pacific Open – Singles|2016 Pan Pacific Open]] in Tokyo and entered the top 50 of the WTA rankings. Osaka broke into the upper echelon of women's tennis in 2018, winning her first WTA title at the [[2018 BNP Paribas Open – Women's singles|Indian Wells Open]], then defeating Williams in [[2018 US Open – Women's singles final|the final]] of the US Open. In 2021, suffering from depression and other issues, Osaka retired from the French Open, dropped out of Wimbledon, lost early at the US Open, and ended her season early. She took maternity leave in 2023 and returned to competition in 2024.


Osaka is one of the world's most marketable athletes. In 2020, she ranked eighth among athletes in endorsement income and had the highest-ever annual income of any female athlete. Osaka is also recognized as an activist, having showed support for the [[Black Lives Matter]] movement. She was named one of the 2020 [[Sports Illustrated Sportsperson of the Year|''Sports Illustrated'' Sportspersons of the Year]] for her activism, particularly during her US Open championship run, and was included on ''[[Time (magazine)|Time]]''{{'}}s annual list of the [[Time 100|100 most influential people in the world]] in 2019, 2020, and 2021. She was the 2021 [[Laureus World Sports Award for Sportswoman of the Year|Laureus World Sportswoman of the Year]]. At the [[2020 Summer Olympics|2020 Tokyo Olympics]], she became the first tennis player to [[List of people who have lit the Olympic cauldron|light the Olympic cauldron]] during the [[2020 Summer Olympics opening ceremony|opening ceremony]].
Osaka is known for her multi-ethnic background and her shy, candid personality. With her diverse background and status as a Grand Slam singles champion, she is one of the most marketable women athletes in the world, ranking second in endorsement income in 2019 behind only Serena Williams. On the court, Osaka has an aggressive playing style with a powerful [[Serve (tennis)|serve]] that can reach {{Convert|125|mph|km/h|sigfig=2}}.

On the court, Osaka has an aggressive playing style with a powerful [[Serve (tennis)|serve]] that can reach {{Convert|201|km/h|mph|sigfig=3|sp=us}}.
{{TOC limit|2}}


==Early life and background==
==Early life and background==
Naomi was born on October 16, 1997, in [[Chūō-ku, Osaka|Chūō-ku]], [[Osaka]] in Japan to Tamaki Osaka and Leonard François.<ref name="wta-profile">{{cite web |title=Naomi Osaka |url=http://www.wtatennis.com/players/player/319998/title/naomi-osaka-0 |website=WTA Tennis |accessdate=November 3, 2018}}</ref> Her mother is from [[Hokkaido]], Japan, and her father is from [[Jacmel]], [[Haiti]]. She has an older sister named [[Mari Osaka|Mari]] who is also a professional tennis player. The two girls were given their mother's maiden name for practical reasons when the family lived in Japan. Osaka's parents met when her father was visiting Hokkaido while he was a college student in New York.<ref name="ny-times">{{Cite news|url=https://www.nytimes.com/2018/08/23/magazine/naomi-osakas-breakthrough-game.html|title=Naomi Osaka's Breakthrough Game|last=Larmer|first=Brook|date=August 23, 2018|work=The New York Times|access-date=August 27, 2018}}</ref><ref name="washington-post">{{cite web |last1=Noori Farzan |first1=Antonia |title=Japanese, Haitian, and now a Grand Slam winner: Naomi Osaka's historic journey to the U.S. Open |url=https://www.washingtonpost.com/news/morning-mix/wp/2018/09/10/japanese-haitian-and-now-a-grand-slam-winner-naomi-osakas-historic-journey-to-the-u-s-open/ |website=Washington Post |date=September 10, 2018 |accessdate=September 11, 2018}}</ref>
Naomi Osaka was born on October 16, 1997, in [[Chūō-ku, Osaka]], Japan to Leonard François, who is from [[Jacmel]], Haiti, and {{nihongo|Tamaki Osaka|大坂 環|Ōsaka Tamaki<!-- Japanese name in https://www.cosmopolitan.com:443/jp/entertainment/celebrity/a37072689/naomi-osaka-parents-210720-hns/ and https://news.yahoo.co.jp/articles/6ba8757489dfa75bc8e4cc3d4b72c7f27af92de2 (Japanese Cosmopolitan magazine on Yahoo! News) : "母である環(たまき)さんの出身地" -->}}, who is from [[Nemuro, Hokkaido]], Japan.<ref name= "wta-profile">{{cite web |title=Naomi Osaka |url=http://www.wtatennis.com/players/player/319998/title/naomi-osaka-0 |website=WTA Tennis |access-date=November 3, 2018}}</ref> She has an older sister, [[Mari Osaka|Mari]], who is a former professional tennis player. The sisters were given their mother's family name as that was the practice when just one spouse held native citizenship. Osaka's parents met when her father was visiting Hokkaido while he was a college student in New York.<ref name="ny-times">{{Cite news|url=https://www.nytimes.com/2018/08/23/magazine/naomi-osakas-breakthrough-game.html|title=Naomi Osaka's Breakthrough Game|last=Larmer|first=Brook|date=August 23, 2018|work=The New York Times|access-date=August 27, 2018}}</ref><ref name="washington-post">{{cite news |last1=Noori Farzan |first1=Antonia |title=Japanese, Haitian, and now a Grand Slam winner: Naomi Osaka's historic journey to the U.S. Open |url=https://www.washingtonpost.com/news/morning-mix/wp/2018/09/10/japanese-haitian-and-now-a-grand-slam-winner-naomi-osakas-historic-journey-to-the-u-s-open/ |newspaper= Washington Post |date=September 10, 2018 |access-date= September 11, 2018}}</ref>

When Osaka was four years old, her family moved from Japan to the U.S. to live with her father's parents in [[Elmont, New York]] on [[Long Island]].<ref>{{Cite web |title=Naomi Osaka |url=https://www.womenshistory.org/education-resources/biographies/naomi-osaka |access-date=May 29, 2024 |website=National Women's History Museum |language=en}}</ref> Her father was inspired to teach his daughters how to play tennis by watching the [[Williams sisters]] compete at the [[1999 French Open]]. Having little experience as a tennis player himself, he sought to emulate how [[Richard Williams (tennis coach)|Richard Williams]] trained his daughters to become two of the best players in the world, despite having never played the sport. François remarked that "the blueprint was already there. I just had to follow it," with regard to the detailed plan Richard had developed for his daughters.


When Osaka was three years old, her family moved from Japan to [[Valley Stream, New York]] on [[Long Island]] to live with her father's parents. Osaka's father was inspired to teach his daughters how to play tennis, by watching the [[Williams sisters]] compete at the [[1999 French Open]]. Having little experience as a tennis player himself, he sought to emulate how [[Richard Williams (tennis coach)|Richard Williams]] trained his daughters to become two of the best players in the world, despite having never played the sport. François remarked that, "The blueprint was already there. I just had to follow it", with regard to the detailed plan Richard had developed for his daughters. He began coaching Naomi and Mari once they settled in the United States.<ref name="ny-times"/> In 2006, Osaka's family moved to Florida when Naomi was eight or nine years old so that they would have better opportunities to train. Naomi practiced on the [[Pembroke Pines, Florida|Pembroke Pines]] public courts.<ref name="ny-times"/> When she was 15 years old, she began working with Patrick Tauma at the ISP Academy.<ref name=tauma>{{cite web |title=Naomi Osaka Tennis Biography |url=https://www.youtube.com/watch?v=QiorXvLYxpE |website=Patrick Tauma |accessdate=November 3, 2018}}</ref> In 2014, she moved to the [[Harold Solomon]] Tennis Academy.<ref name="solomon">{{cite web |title=Naomi Osaka: Japanese Firepower |url=http://www.tennisviewmag.com/tennis-view-magazine/article/naomi-osaka-japanese-firepower |first1 = Tom | last1 = Downs|website=Tennis View Magazine |accessdate=November 3, 2018}}</ref> She later trained at the ProWorld Tennis Academy.<ref name="wsj"/>
François began coaching Naomi and Mari once they settled in the United States.<ref name="ny-times"/> In 2006, her family moved to Florida when she was eight or nine years old so that they would have better opportunities to train. She practiced on the [[Pembroke Pines, Florida|Pembroke Pines]] public courts during the day and was [[Homeschooling in the United States|homeschooled]] at night.<ref name="ny-times"/> When Naomi was 15{{nbsp}}years old, she began working with Patrick Tauma at the ISP Academy.<ref name=tauma>{{cite web |title=Naomi Osaka Tennis Biography | date=August 24, 2013 |url=https://www.youtube.com/watch?v=QiorXvLYxpE | publisher= Patrick Tauma| via= YouTube |access-date=November 3, 2018}}</ref> In 2014, she moved to the [[Harold Solomon]] Tennis Academy.<ref name="solomon">{{cite web |title=Naomi Osaka: Japanese Firepower |url= http://www.tennisviewmag.com/tennis-view-magazine/article/naomi-osaka-japanese-firepower |first1 = Tom | last1 = Downs|website=Tennis View Magazine |access-date=November 3, 2018}}</ref> She later trained at the ProWorld Tennis Academy.<ref name="wsj"/>


Although Osaka was raised in the United States, her parents decided that their daughters would represent Japan. They said, "We made the decision that Naomi would represent Japan at an early age. She was born in Osaka and was brought up in a household of Japanese and Haitian culture. Quite simply, Naomi and her sister Mari have always felt Japanese so that was our only rationale. It was never a financially motivated decision nor were we ever swayed either way by any national federation."<ref name=wsj>{{cite web |title=Naomi Osaka: The Tennis Star Who Was Overlooked by Everyone |url=https://www.wsj.com/articles/naomi-osaka-the-tennis-star-who-was-overlooked-by-everyone-1536773788 |website=Wall Street Journal |accessdate=November 3, 2018 | first1 = Tom | last1 = Perrota}}</ref> This decision may have also been motivated by a lack of interest from the [[United States Tennis Association]] (USTA) when Naomi was still a young player.<ref name="ny-times"/> The USTA later offered Naomi the opportunity to train at their national training center in Boca Raton when she was 16 years old, but she declined.<ref name=wsj/>
Although Osaka was raised in the United States, her parents decided that their daughters would represent Japan. They said, {{blockquote|"We made the decision that Naomi would represent Japan at an early age. She was born in Osaka and was brought up in a household of Japanese and Haitian culture. Quite simply, Naomi and her sister Mari have always felt Japanese so that was our only rationale. It was never a financially motivated decision nor were we ever swayed either way by any national federation."<ref name=wsj>{{cite news |title=Naomi Osaka: The Tennis Star Who Was Overlooked by Everyone |url= https://www.wsj.com/articles/naomi-osaka-the-tennis-star-who-was-overlooked-by-everyone-1536773788 |website=Wall Street Journal |access-date=November 3, 2018 | first1 = Tom | last1 = Perrota|date=September 12, 2018 }}</ref>}} This decision may have also been motivated by a lack of interest from the [[United States Tennis Association]] (USTA) when she was still a young player.<ref name="ny-times"/> The USTA later offered her the opportunity to train at their national training center in [[Boca Raton, Florida]] when she was 15 years old, but she declined.<ref name=wsj/>


==Professional career==
==Professional career==
===2011–15: WTA Tour match win at age 16, top 150===
[[File:Osaka with Serena Williams.jpg|thumb|240px|Osaka interviewed at the 2014 Stanford Classic alongside [[Serena Williams]]]]
Osaka never competed on the [[ITF Junior Circuit]], the premier international junior tour, and only played in a small number of junior tournaments at any age level.<ref name="core-tennis">{{cite web |title=Naomi Osaka Statistics |url=https://www.coretennis.net/tennis-player/naomi-osaka/13854/stats.html |website=Core Tennis |accessdate=October 30, 2018}}</ref> She instead skipped to the [[ITF Women's Circuit]] and played her first qualifying match in October 2011 on her 14th birthday.<ref name="japanese-interview-2016">{{cite web |last1=Uchida |first1=Akira |title=大坂なおみが18年間を振り返る「お姉ちゃんこそ最大のライバル」| trans-title=Naomi Osaka looks back over 18 years: 'My sister is my biggest rival' |language = Japanese|url=https://sportiva.shueisha.co.jp/clm/otherballgame/tennis/2016/10/05/18_split/index_4.php |website=Sportiva |accessdate=October 30, 2018}}</ref> She then made her professional main draw debut in doubles at her next tournament in March with her sister Mari. Meanwhile, she did not qualify for her first singles main draw until July in her seventh such attempt. Her best result of the 2012 season came at the ITF $10K event in [[Amelia Island]], where she lost to her sister in the semifinals.<ref name="itf-profile">{{cite web |title=Naomi Osaka |url=https://www.itftennis.com/procircuit/players/player/profile.aspx?playerid=100194114 |website=ITF Tennis |accessdate=October 30, 2018}}</ref> Osaka has never won a title at the ITF level, only managing to finish runner-up on four occasions.<ref name="itf-profile"/> Her first two finals came at the $25K level, one of which was in June 2013 in [[El Paso, Texas]]. The other was in March 2014 in Irapuato, Mexico and included a victory over her sister.<ref name="itf-profile"/>


===2011–2015: First WTA Tour match win===
In September 2013, Osaka turned professional shortly before turning 16 years old.<ref>{{cite news |title=Naomi Osaka: US Open champion's career in pictures |url=https://edition.cnn.com/2018/09/11/tennis/gallery/naomi-osaka-us-open-career-spt-intl/index.html |accessdate=October 9, 2018 |work=CNN |date=September 11, 2018}}</ref> She entered her first two qualifying draws on the WTA Tour that same month at the [[2013 Challenge Bell|Challenge Bell]] in Québec and the [[2013 Toray Pan Pacific Open|Pan Pacific Open]] in Tokyo. The latter event was her first opportunity to compete professionally in Japan.<ref name="itf-profile"/> The following summer, Osaka qualified for her first WTA main draw at the [[2014 Bank of the West Classic|2014 Stanford Classic]]. In her tour level debut, she upset world {{abbr|No.|number}} 19 [[Samantha Stosur]] in a tight match where she saved a match point in the second set tiebreak and came back from a 5–3 deficit in the third set. She was still just 16 years old and ranked No. 406 at the time.<ref name="stosur-upset">{{cite web |title=Qualifier Stuns Stosur In Stanford |url=http://www.wtatennis.com/news/qualifier-stuns-stosur-stanford |website=WTA Tennis |accessdate=October 30, 2018}}</ref><ref name="stosur-upset-si">{{cite web |title=Watch: 16-year-old standout Naomi Osaka hits a massive forehand |url=https://www.si.com/tennis/2014/07/31/watch-naomi-osaka-bank-west-classic-forehand-highlight | first1 = Courtney | last1 = Nguyen |website=Sports Illustrated |accessdate=October 30, 2018}}</ref> Osaka also won a match as a [[Wild card (sports)|wild card]] at the [[2014 Japan Women's Open|Japan Women's Open]], her only other WTA main draw of the year.<ref>{{cite web |title=Keys, Svitolina, Watson advance at Japan Women's Open |url=http://www.tennis.com/pro-game/2014/10/madison-keys-beats-vickery-in-japan-womens-open/52940/ |website=Tennis.com |accessdate=October 30, 2018}}</ref> These victories helped her progress into the top 250 of the WTA rankings before the end of the season.<ref name="wta-rankings">{{cite web |title=Naomi Osaka Rankings History |url=http://www.wtatennis.com/players/player/319998/title/naomi-osaka-0#ranking |website=WTA Tennis |accessdate=October 30, 2018}}</ref>
[[File:Osaka with Serena Williams.jpg|alt=A reporter holding a microphone to Osaka with Williams to the side smiling|thumb|Osaka interviewed at the 2014 Stanford Classic alongside [[Serena Williams]]]]
Osaka never competed on the [[ITF Junior Circuit]], the premier international junior tour, and only played in a small number of junior tournaments at any age level.<ref name="core-tennis">{{cite web |title=Naomi Osaka Statistics |url=https://www.coretennis.net/tennis-player/naomi-osaka/13854/stats.html |website=Core Tennis |access-date=October 30, 2018}}</ref> She instead skipped to the [[ITF Women's Circuit]] and played her first qualifying match in October 2011 on her 14th birthday.<ref name="japanese-interview-2016">{{cite web |last1=Uchida |first1=Akira |title=大坂なおみが18年間を振り返る「お姉ちゃんこそ最大のライバル」| trans-title=Naomi Osaka looks back over 18 years: 'My sister is my biggest rival' |language = ja|url=https://sportiva.shueisha.co.jp/clm/otherballgame/tennis/2016/10/05/18_split/index_4.php |website=Sportiva |date=October 5, 2016 |access-date=October 30, 2018}}</ref> She then made her professional main-draw debut in doubles at her next tournament in March with her sister Mari. Meanwhile, she did not qualify for her first singles main draw until July in her seventh such attempt. Her best result of the 2012 season came at a $10k event in [[Amelia Island]], where she lost to her sister in the semifinals.<ref name="itf-profile">{{cite web |title=Naomi Osaka |url=https://www.itftennis.com/procircuit/players/player/profile.aspx?playerid=100194114 |website=ITF Tennis |access-date=October 30, 2018 |archive-date=September 23, 2018 |archive-url=https://web.archive.org/web/20180923052423/https://www.itftennis.com/procircuit/players/player/profile.aspx?playerid=100194114 |url-status=dead }}</ref> Osaka has never won a title at the ITF level, only managing to finish runner-up on four occasions.<ref name="itf-profile"/> Her first two finals came at the $25K level, one of which was in June 2013 in [[El Paso, Texas]]. The other was in March 2014 in Irapuato, Mexico and included a victory over her sister.<ref name="itf-profile"/>


In September 2013, Osaka turned professional shortly before turning 16 years old.<ref>{{cite news |title=Naomi Osaka: US Open champion's career in pictures |url=https://edition.cnn.com/2018/09/11/tennis/gallery/naomi-osaka-us-open-career-spt-intl/index.html |access-date=October 9, 2018 |work=CNN |date=September 11, 2018}}</ref> She entered her first two qualifying draws on the WTA Tour that same month at the [[2013 Challenge Bell|Challenge Bell]] in Quebec and the [[2013 Toray Pan Pacific Open|Pan Pacific Open]] in Tokyo. The latter event was her first opportunity to compete professionally in Japan.<ref name="itf-profile"/> The following summer, Osaka qualified for her first WTA Tour main draw at the [[2014 Bank of the West Classic|2014 Stanford Classic]]. In her tour level debut, she upset world {{abbr|No.|number}} 19, [[Samantha Stosur]], in a tight match where she saved a match point in the second set tiebreak and came back from a 5–3 deficit in the third set. She was still just 16 years old and ranked No. 406 at the time.<ref name="stosur-upset">{{cite web |title=Qualifier Stuns Stosur In Stanford |url=http://www.wtatennis.com/news/qualifier-stuns-stosur-stanford |website=WTA Tennis |access-date=October 30, 2018}}</ref><ref name="stosur-upset-si">{{cite magazine |title=Watch: 16-year-old standout Naomi Osaka hits a massive forehand |url=https://www.si.com/tennis/2014/07/31/watch-naomi-osaka-bank-west-classic-forehand-highlight | first1 = Courtney | last1 = Nguyen |magazine=Sports Illustrated |access-date=October 30, 2018}}</ref> Osaka also won a match as a [[Wild card (sports)|wildcard]] at the [[2014 Japan Women's Open|Japan Women's Open]], her only other WTA Tour main draw of the year.<ref>{{cite web |title=Keys, Svitolina, Watson advance at Japan Women's Open |url=http://www.tennis.com/pro-game/2014/10/madison-keys-beats-vickery-in-japan-womens-open/52940/ |website=Tennis.com |access-date=October 30, 2018}}</ref> These victories helped her progress into the top 250 of the rankings before the end of the season.<ref name="wta-rankings">{{cite web |title=Naomi Osaka Rankings History |url=http://www.wtatennis.com/players/player/319998/title/naomi-osaka-0#ranking |website=WTA Tennis |access-date=October 30, 2018}}</ref>
Despite not winning another WTA main draw singles match in 2015, Osaka continued to climb up the rankings.<ref name=core-tennis/><ref name=wta-rankings/> She reached her two highest level ITF finals, the first at the $75K [[2015 Kangaroo Cup|Kangaroo Cup]] in Japan and the second at the $50K [[2015 Aegon Surbiton Trophy|Surbiton Trophy]] in the United Kingdom.<ref name=itf-profile/> Following these runner-up results, Osaka was ranked high enough to enter qualifying at the last two Grand Slam singles events of the year, [[2015 Wimbledon Championships|Wimbledon]] and the [[2015 US Open (tennis)|US Open]]. She won her first match at the US Open, but was unable to qualify for either main draw.<ref name=itf-profile/> Nonetheless, Osaka had a strong finish to the year. In October during the [[2015 WTA Finals|WTA Finals]], she won the Rising Stars Invitational four-player exhibition tournament, defeating heavy favorite and world No. 35 [[Caroline Garcia]] in the final.<ref name="rising-star">{{cite web |title=Osaka Wins WTA Rising Stars Invitational |url=http://www.wtatennis.com/content/osaka-wins-wta-rising-stars-invitational-0 |website=WTA Tennis |accessdate=October 30, 2018}}</ref> Continuing to play in November, Osaka then reached the biggest final of her career at the [[WTA 125K series|WTA 125K]] [[2015 Hua Hin Championships|Hua Hin Championships]] in Thailand. After a semifinal at a [[2015 Dunlop World Challenge|$75K event]] in Japan, she finished the year ranked No. 144.<ref name=wta-rankings/>


Despite not winning another WTA Tour main-draw singles match in 2015, Osaka continued to climb up the rankings.<ref name=core-tennis/><ref name=wta-rankings/> She reached her two highest level finals, the first at the $75k [[2015 Kangaroo Cup|Kangaroo Cup]] in Japan and the second at the $50k [[2015 Aegon Surbiton Trophy|Surbiton Trophy]] in England.<ref name=itf-profile/> Following these runner-up results, Osaka was ranked high enough to enter qualifying at the last two Grand Slam singles events of the year, [[2015 Wimbledon Championships|Wimbledon]] and the [[2015 US Open (tennis)|US Open]]. She won her first match at the US Open, but was unable to qualify for either main draw.<ref name=itf-profile/> Nonetheless, Osaka had a strong finish to the year. In October during the [[2015 WTA Finals|WTA Finals]], she won the Rising Stars Invitational four-player exhibition tournament, defeating heavy favorite and world No. 35, [[Caroline Garcia]], in the final.<ref name="rising-star">{{cite web |title=Osaka Wins WTA Rising Stars Invitational |url=http://www.wtatennis.com/content/osaka-wins-wta-rising-stars-invitational-0 |website=WTA Tennis |access-date=October 30, 2018}}</ref> Continuing to play in November, Osaka then reached the biggest final of her career at the [[WTA 125 tournaments|WTA 125]] [[2015 Hua Hin Championships|Hua Hin Championships]] in Thailand. After a semifinal at a [[2015 Dunlop World Challenge|$75k event]] in Japan, she finished the year ranked No. 144.<ref name=wta-rankings/>
===2016: First WTA final, Newcomer of the Year, top 50===
[[File:Osaka US16 (17) (29235634064).jpg|thumb|left|upright|Naomi Osaka at the 2016 US Open]]
Osaka began the season playing three tournaments in Australia. Her results during this stretch were good enough to bring her near the top 100,<ref name=wta-rankings/> which allowed her to play in WTA Tour-level events all year.<ref name=core-tennis/> Most notably, she qualified for her first Grand Slam main draw at the [[2016 Australian Open – Women's Singles|Australian Open]] and made it to the third round. In particular, she upset No. 21 [[Elina Svitolina]] in straight sets in the second round before losing to No. 16 [[Victoria Azarenka]].<ref>{{Cite web|url=https://www.si.com/tennis/2016/01/23/australian-open-day-azarenka-wawrinka-raonic-muguruza|title=Australian Open Day 6: Keys beats Ivanovic after scare; Muguruza exits|last=Lisanti|first=Jamie|date=January 23, 2016 |work=Sports Illustrated| access-date=September 11, 2018}}</ref> Back in the United States, Osaka received a wild card into the [[2016 Miami Open|Miami Open]], her first Premier Mandatory main draw. During the event, she won two matches including a victory over No. 18 [[Sara Errani]].<ref>{{cite web |title=Vamos Rafa! A Popular Nadal Tries Again At Miami Open |url=https://miami.cbslocal.com/2016/03/25/vamos-rafa-a-popular-nadal-tries-again-at-miami-open/ |website=CBS Miami |accessdate=October 31, 2018 | agency = Associated Press}}</ref> With this success, she progressed into the top 100 of the WTA rankings for the first time.<ref name=wta-rankings/>


===2016: Newcomer of the Year, top 50===
In the clay court events leading up the [[2016 French Open|French Open]], Osaka needed to qualify for every event she entered. She only managed to do so at a single event, the [[2016 Volvo Car Open|Charleston Open]], where she lost her only match in the main draw.<ref name=itf-profile/> Nonetheless, Osaka was ranked high enough to be directly accepted into the main draw of the French Open. In her debut at the tournament, she recorded her only two clay court match wins of the season. She also won the first set against No. 6 [[Simona Halep]], but ultimately lost the match.<ref>{{cite web |title=Halep eliminates teenager Osaka in third-round match |url=https://www.japantimes.co.jp/sports/2016/05/27/more-sports/tennis/halep-eliminates-teenager-osaka-in-third-round-match/#.W9kxZhNKjaY |website=Japan Times |accessdate=October 31, 2018| agency = Associated Press}}</ref><ref>{{cite web |title=Osaka falls short of acing a Japanese test |url=https://www.reuters.com/article/uk-tennis-open-osaka/osaka-falls-short-of-acing-a-japanese-test-idUKKCN0YI1QA |website=Reuters |accessdate=October 31, 2018| first1 = Pritha | last1 = Sarkar}}</ref> She then did not play the grass court season after suffering an injury shortly after the French Open.<ref>{{cite web |title=Osaka Brilliant In Brazil |url=http://www.wtatennis.com/content/osaka-brilliant-brazil-0 |website=WTA Tennis |accessdate=October 31, 2018}}</ref><ref name=itf-profile/>
[[File:Naomi Osaka (33948760861) (cropped) 3.jpg|alt=Osaka ready to serve|thumb|upright=0.9|left|Osaka at the 2016 French Open]]
Osaka began the season playing three tournaments in Australia. Her results during this stretch were good enough to bring her near the top 100,<ref name=wta-rankings/> which allowed her to play in WTA Tour-level events all year.<ref name=core-tennis/> Most notably, she qualified for her first Grand Slam main draw at the [[2016 Australian Open – Women's singles|Australian Open]] and made it to the third round. In particular, she upset No. 21, [[Elina Svitolina]], in straight sets in the second round before losing to No. 16, [[Victoria Azarenka]].<ref>{{Cite magazine|url=https://www.si.com/tennis/2016/01/23/australian-open-day-azarenka-wawrinka-raonic-muguruza|title=Australian Open Day 6: Keys beats Ivanovic after scare; Muguruza exits|last=Lisanti|first=Jamie|date=January 23, 2016 |magazine=Sports Illustrated| access-date=September 11, 2018}}</ref> Back in the United States, Osaka received a wildcard into the [[2016 Miami Open|Miami Open]], her first Premier Mandatory main draw. During the event, she won two matches including a victory over No. 18, [[Sara Errani]].<ref>{{cite web |title=Vamos Rafa! A Popular Nadal Tries Again At Miami Open |url=https://miami.cbslocal.com/2016/03/25/vamos-rafa-a-popular-nadal-tries-again-at-miami-open/ |website=CBS Miami |date=March 25, 2016 |access-date=October 31, 2018 | agency = Associated Press}}</ref> With this success, she progressed into the top 100 of the WTA rankings for the first time.<ref name=wta-rankings/>


In the clay-court events leading up to the [[2016 French Open|French Open]], Osaka needed to qualify for every event she entered. She only managed to do so at a single event, the [[2016 Volvo Car Open|Charleston Open]], where she lost her only match in the main draw.<ref name=itf-profile/> Nonetheless, Osaka was ranked high enough to be directly accepted into the main draw of the French Open. In her debut at the tournament, she recorded her only two clay-court match wins of the season. She also won the first set against No. 6 [[Simona Halep]], but ultimately lost the match.<ref>{{cite web |title=Halep eliminates teenager Osaka in third-round match |url=https://www.japantimes.co.jp/sports/2016/05/27/more-sports/tennis/halep-eliminates-teenager-osaka-in-third-round-match/ |website=Japan Times |access-date=October 31, 2018 |agency=Associated Press |archive-date=November 16, 2018 |archive-url=https://web.archive.org/web/20181116060849/https://www.japantimes.co.jp/sports/2016/05/27/more-sports/tennis/halep-eliminates-teenager-osaka-in-third-round-match/ |url-status=dead }}</ref><ref>{{cite news |title=Osaka falls short of acing a Japanese test |url=https://www.reuters.com/article/uk-tennis-open-osaka/osaka-falls-short-of-acing-a-japanese-test-idUKKCN0YI1QA |website=Reuters |access-date=October 31, 2018| first1 = Pritha | last1 = Sarkar|date=May 27, 2016 }}</ref> She then did not play the grass-court season after suffering an injury shortly after the French Open.<ref>{{cite web |title=Osaka Brilliant In Brazil |url=http://www.wtatennis.com/content/osaka-brilliant-brazil-0 |website=WTA Tennis |access-date=October 31, 2018}}</ref><ref name=itf-profile/>
Osaka returned to tennis in the middle of July.<ref name=itf-profile/> At the [[2016 US Open (tennis)|US Open]] in August, she reached the third round at a Grand Slam event for the third time this year. She upset No. 30 [[CoCo Vandeweghe]] in the first round before losing to No. 9 [[Madison Keys]] in three sets.<ref>{{cite web |title=Osaka wins in U.S. Open debut; Olympic champ Puig falls |url=https://www.japantimes.co.jp/sports/2016/08/30/more-sports/tennis/osaka-wins-u-s-open-debut-olympic-champ-puig-falls/#.W9k2NxNKjaY |website=Japan Times |accessdate=October 31, 2018}}</ref> During her match against Keys, she had a 5–1 lead in the third set before ultimately losing in a tiebreak.<ref>{{cite web |title=Down 5–1 in third set, Madison Keys storms back to stun Naomi Osaka in Third Round |url=http://www.tennis.com/pro-game/2016/09/naomi-osaka-madison-keys-us-open-tennis/60554/ |website=Tennis.com |accessdate=October 31, 2018}}</ref> After the tournament, Osaka began the Asian hard court season with two tournaments in Tokyo, first losing in the second round at the [[2016 Japan Women's Open|Japan Women's Open]].<ref>{{cite web |title=Zhang Topples Osaka In Tokyo |url=http://www.wtatennis.com/news/zhang-topples-osaka-tokyo |website=WTA Tennis |accessdate=October 31, 2018}}</ref> Having already reached her first two career WTA quarterfinals earlier in the year, she then made her breakthrough as a wild card at the Premier level [[2016 Toray Pan Pacific Open – Singles|Pan Pacific Open]]. She upset No. 12 [[Dominika Cibulková]] and No. 20 Svitolina on the road to making her first WTA final at the age of 18. At the time, Cibulkova was the highest ranked player she ever defeated. Additionally, she was the first Japanese player to contest the final at the event since [[Kimiko Date]] in [[1995 Toray Pan Pacific Open|1995]].<ref>{{cite web |title=Overpowering Osaka eliminates Cibulkova |url=https://www.japantimes.co.jp/sports/2016/09/21/more-sports/tennis/overpowering-osaka-eliminates-cibulkova/#.W9k69RNKjaY |website=Japan Times| first1 = Andrew | last1 = McKirdy |accessdate=October 31, 2018}}</ref><ref>{{cite web |title=Wozniacki Returns To Tokyo Final After Radwanska Upset |url=http://www.wtatennis.com/news/wozniacki-returns-tokyo-final-after-radwanska-upset |website=WTA Tennis |accessdate=October 31, 2018}}</ref> Osaka ultimately finished runner-up to [[Caroline Wozniacki]].<ref>{{cite web |title=Wozniacki Wins First 2016 Title In Tokyo, Knocks Out Japanese Teen Osaka |url=http://www.wtatennis.com/news/wozniacki-wins-first-2016-title-tokyo-knocks-out-japanese-teen-osaka |website=WTA Tennis |accessdate=October 31, 2018}}</ref> Nonetheless, she entered the top 50 of the WTA rankings for the first time.<ref name=wta-rankings/> At the end of the season, she was named the [[WTA Newcomer of the Year]].<ref>{{cite web |title=Osaka: WTA Newcomer Of The Year |url=http://www.wtatennis.com/news/osaka-wta-newcomer-year |website=WTA Tennis |accessdate=October 31, 2018}}</ref>


Osaka returned to tennis in the middle of July.<ref name=itf-profile/> At the [[2016 US Open (tennis)|US Open]] in August, she reached the third round at a major event for the third time that year. She upset No. 30 [[CoCo Vandeweghe]] in the first round before losing to No. 9 [[Madison Keys]], in three sets.<ref>{{cite web |title=Osaka wins in U.S. Open debut; Olympic champ Puig falls |url=https://www.japantimes.co.jp/sports/2016/08/30/more-sports/tennis/osaka-wins-u-s-open-debut-olympic-champ-puig-falls/ |website=Japan Times |access-date=October 31, 2018 |archive-date=November 16, 2018 |archive-url=https://web.archive.org/web/20181116060921/https://www.japantimes.co.jp/sports/2016/08/30/more-sports/tennis/osaka-wins-u-s-open-debut-olympic-champ-puig-falls/ |url-status=dead }}</ref> During her match against Keys, she had a 5–1 lead in the third set before ultimately losing in a tiebreak.<ref>{{cite web |title=Down 5–1 in third set, Madison Keys storms back to stun Naomi Osaka in Third Round |url=http://www.tennis.com/pro-game/2016/09/naomi-osaka-madison-keys-us-open-tennis/60554/ |website=Tennis.com |access-date=October 31, 2018}}</ref> After the tournament, Osaka began the Asian hardcourt season with two tournaments in Tokyo, first losing in the second round at the [[2016 Japan Women's Open|Japan Women's Open]].<ref>{{cite web |title=Zhang Topples Osaka In Tokyo |url=http://www.wtatennis.com/news/zhang-topples-osaka-tokyo |website=WTA Tennis |access-date=October 31, 2018}}</ref> Having already reached her first two career WTA quarterfinals earlier in the year, she then made her breakthrough as a wildcard at the Premier-level [[2016 Toray Pan Pacific Open – Singles|Pan Pacific Open]]. She upset No. 12 [[Dominika Cibulková]] and No. 20 Svitolina on the road to making her first WTA final at the age of 18. At the time, Cibulkova was the highest-ranked player she ever defeated. Additionally, she was the first Japanese player to contest the final at the event since [[Kimiko Date]] in [[1995 Toray Pan Pacific Open|1995]].<ref>{{cite web |title=Overpowering Osaka eliminates Cibulkova |url=https://www.japantimes.co.jp/sports/2016/09/21/more-sports/tennis/overpowering-osaka-eliminates-cibulkova/ |website=Japan Times |first1=Andrew |last1=McKirdy |date=September 21, 2016 |access-date=October 31, 2018 |archive-date=January 16, 2022 |archive-url=https://web.archive.org/web/20220116230011/https://www.japantimes.co.jp/sports/2016/09/21/more-sports/tennis/overpowering-osaka-eliminates-cibulkova/ |url-status=dead }}</ref><ref>{{cite web |title=Wozniacki Returns To Tokyo Final After Radwanska Upset |url=http://www.wtatennis.com/news/wozniacki-returns-tokyo-final-after-radwanska-upset |website=WTA Tennis |access-date=October 31, 2018}}</ref> Osaka ultimately finished runner-up to [[Caroline Wozniacki]].<ref>{{cite web |title=Wozniacki Wins First 2016 Title In Tokyo, Knocks Out Japanese Teen Osaka |url=http://www.wtatennis.com/news/wozniacki-wins-first-2016-title-tokyo-knocks-out-japanese-teen-osaka |website=WTA Tennis |access-date=October 31, 2018}}</ref> Nonetheless, she entered the top 50 of the WTA rankings for the first time.<ref name=wta-rankings/> At the end of the season, she was named the [[WTA Newcomer of the Year]].<ref>{{cite web |title=Osaka: WTA Newcomer Of The Year |url=http://www.wtatennis.com/news/osaka-wta-newcomer-year |website=WTA Tennis |access-date=October 31, 2018}}</ref>
===2017: Slight regression, two top 10 victories===
After her huge improvement the previous year, Osaka was unable to set a new career high ranking in 2017. Nonetheless, she maintained a steady ranking throughout the season, rising no higher than No. 44 while falling no lower than No. 68, her year-end ranking.<ref name=wta-rankings/> She did not win more than two main draw matches at any event all year.<ref name=itf-profile/>


===2017: Two top-10 victories===
Osaka's best tournament result of the season came at the [[2017 Rogers Cup|Canadian Open]], where she reached the round of sixteen as a qualifier. During the event, she upset No. 16 [[Anastasija Sevastova]] before needing to retire against world No. 1 [[Karolína Plíšková]] due to an abdominal injury. She had won the second set against Plíšková.<ref>{{cite web |title=Pliskova serves up Toronto quarterfinal spot |url=http://www.wtatennis.com/news/karolina-pliskova-defeats-naomi-osaka-withdraws-toronto-rogers-cup-quarterfinals |website=WTA Tennis |accessdate=November 1, 2018}}</ref> Her next best results of the year came at the last two Grand Slam events of the season, where she made it to the third round at each of [[2017 Wimbledon Championships|Wimbledon]] and the [[2017 US Open (tennis)|US Open]]. She had a strong debut at Wimbledon, upsetting No. 23 [[Barbora Strýcová]] before losing to No. 11 [[Venus Williams]].<ref>{{cite news|last1=Culpepper|first1=Chuck|title=Venus Williams advances in her 20th Wimbledon. Her next opponent has been alive for 19 of them|url=http://www.chicagotribune.com/sports/breaking/ct-tennis-wimbledon-venus-williams-naomi-osaka-20170705-story.html|accessdate=October 16, 2017|work=Chicago Tribune|date=July 5, 2017}}</ref><ref>{{cite news|last1=Harwitt|first1=Sandra|title=Venus Williams tested, beats Naomi Osaka at Wimbledon|url=https://www.usatoday.com/story/sports/tennis/2017/07/07/venus-williams-tested-beats-naomi-osaka-wimbledon/459870001/|accessdate=October 16, 2017|website=USA Today|date=July 7, 2017}}</ref> Her US Open was then highlighted by her first round win against defending champion and No. 6 [[Angelique Kerber]], the first top ten victory of Osaka's career.<ref>{{cite web |title=Naomi Osaka Ousts Angelique Kerber, the Defending Champion, at the U.S. Open |url=https://www.nytimes.com/2017/08/29/sports/tennis/naomi-osaka-angelique-kerber-us-open.html |website=New York Times |accessdate=November 1, 2018|first1 = Ben | last1 = Rothenberg}}</ref><ref>{{cite web |title=Top 5 Upsets of 2017 (No. 5): Osaka sends Kerber crashing out in New York |url=http://www.wtatennis.com/news/top-5-upsets-2017-no5-osaka-sends-kerber-crashing-out-new-york |website=WTA Tennis |accessdate=November 1, 2018}}</ref> However, her run was ended by veteran qualifier [[Kaia Kanepi]].<ref>{{cite web |title=Tennis: Tearful Osaka lays out broken heart after US Open loss |url=https://www.straitstimes.com/sport/tennis/tennis-tearful-osaka-lays-out-broken-heart-after-us-open-loss |website=Straits Times |accessdate=November 1, 2018| agency = Agence France-Presse}}</ref> This was the second consecutive year she lost in the third round of the US Open after having at least a one-break lead in the third set.<ref>{{cite web |title=Kaia Kanepi – Naomi Osaka |url=https://www.flashscore.com/match/t4wSqFSL/#point-by-point;3 |website=Flashscore.com |accessdate=November 1, 2018}}</ref>
After her huge improvement the previous year, Osaka was unable to set a new career-high ranking in 2017. Nonetheless, she maintained a steady ranking throughout the season, rising no higher than No. 44 while falling no lower than No. 68, her year-end ranking.<ref name=wta-rankings/> She did not win more than two main draw matches at any event all year.<ref name=itf-profile/>


Osaka's best tournament result of the season came at the [[2017 Rogers Cup|Canadian Open]], where she reached the round of sixteen as a qualifier. During the event, she upset No. 16 [[Anastasija Sevastova]] before needing to retire against world No. 1, [[Karolína Plíšková]], due to an abdominal injury. She had won the second set against Plíšková.<ref>{{cite web |title=Pliskova serves up Toronto quarterfinal spot |url=http://www.wtatennis.com/news/karolina-pliskova-defeats-naomi-osaka-withdraws-toronto-rogers-cup-quarterfinals |website=WTA Tennis |access-date=November 1, 2018}}</ref> Her next best results of the year came at the last two major events of the season, where she made it to the third round at each of [[2017 Wimbledon Championships|Wimbledon]] and the [[2017 US Open (tennis)|US Open]]. She had a strong debut at Wimbledon, upsetting No. 23 [[Barbora Strýcová]], before losing to No. 11 [[Venus Williams]].<ref>{{cite news|last1=Culpepper|first1=Chuck|title=Venus Williams advances in her 20th Wimbledon. Her next opponent has been alive for 19 of them|url=http://www.chicagotribune.com/sports/breaking/ct-tennis-wimbledon-venus-williams-naomi-osaka-20170705-story.html|access-date=October 16, 2017|work=Chicago Tribune|date=July 5, 2017}}</ref><ref>{{cite news|last1=Harwitt|first1=Sandra|title=Venus Williams tested, beats Naomi Osaka at Wimbledon|url=https://www.usatoday.com/story/sports/tennis/2017/07/07/venus-williams-tested-beats-naomi-osaka-wimbledon/459870001/|access-date=October 16, 2017|website=USA Today|date=July 7, 2017}}</ref> Her US Open was then highlighted by her first-round win against defending champion and No. 6, [[Angelique Kerber]], the first top-ten victory of Osaka's career.<ref>{{cite news |title=Naomi Osaka Ousts Angelique Kerber, the Defending Champion, at the U.S. Open |url=https://www.nytimes.com/2017/08/29/sports/tennis/naomi-osaka-angelique-kerber-us-open.html |newspaper=The New York Times |access-date=November 1, 2018|first1 = Ben | last1 = Rothenberg|date=August 30, 2017 }}</ref><ref>{{cite web |title=Top 5 Upsets of 2017 (No. 5): Osaka sends Kerber crashing out in New York |url=http://www.wtatennis.com/news/top-5-upsets-2017-no5-osaka-sends-kerber-crashing-out-new-york |website=WTA Tennis |access-date=November 1, 2018}}</ref> However, her run was ended by veteran qualifier [[Kaia Kanepi]].<ref>{{cite news |title=Tennis: Tearful Osaka lays out broken heart after US Open loss |url=https://www.straitstimes.com/sport/tennis/tennis-tearful-osaka-lays-out-broken-heart-after-us-open-loss |website=Straits Times |date=September 3, 2017 |access-date=November 1, 2018| agency = Agence France-Presse}}</ref> This was the second consecutive year she lost in the third round of the US Open, after having at least a one-break lead in the third set.<ref>{{cite web |title=Kaia Kanepi – Naomi Osaka |url=https://www.flashscore.com/match/t4wSqFSL/#point-by-point;3 |website=Flashscore.com |access-date=November 1, 2018}}</ref>
Osaka in particular struggled playing on clay courts. After winning her first two matches at the [[2017 Volvo Car Open|Charleston Open]],<ref>{{cite web |title=Rogers Rolls Past Osaka To Reach First Charleston QF |url=http://www.wtatennis.com/news/rogers-rolls-past-osaka-reach-first-charleston-qf |website=WTA Tennis |accessdate=November 1, 2018}}</ref> she did not win another main draw match on clay the remainder of the season. Osaka did well in her first full grass court season on the WTA Tour, going 4–4 behind her performance at Wimbledon.<ref name=itf-profile/> Her biggest wins of the year all came on hard court. In addition to her results at the Canadian Open and the US Open, she also recorded a second top ten victory over No. 5 Venus Williams at the [[2017 Hong Kong Tennis Open|Hong Kong Open]], her last tournament of the year.<ref name="first-venus-win">{{cite web |title=Naomi Osaka shocks her idol Venus Williams in Hong Kong |url=https://sport360.com/article/tennis/wta/251370/naomi-osaka-shocks-her-idol-venus-williams-in-hong-kong |website=Sport360 |accessdate=November 1, 2018}}</ref>


Osaka in particular struggled to play on clay courts. After winning her first two matches at the [[2017 Volvo Car Open|Charleston Open]],<ref>{{cite web |title=Rogers Rolls Past Osaka To Reach First Charleston QF |url=http://www.wtatennis.com/news/rogers-rolls-past-osaka-reach-first-charleston-qf |website=WTA Tennis |access-date=November 1, 2018}}</ref> she did not win another main-draw match on clay the remainder of the season. Osaka did well in her first full grass-court season on the WTA Tour, going 4–4 behind her performance at Wimbledon.<ref name=itf-profile/> Her biggest wins of the year all came on hardcourt. In addition to her results at the Canadian Open and the US Open, she also recorded a second top-ten victory over No. 5, Venus Williams, at the [[2017 Hong Kong Tennis Open|Hong Kong Open]], her last tournament of the year.<ref name="first-venus-win">{{cite web |title=Naomi Osaka shocks her idol Venus Williams in Hong Kong |url=https://sport360.com/article/tennis/wta/251370/naomi-osaka-shocks-her-idol-venus-williams-in-hong-kong |website=Sport360 |access-date=November 1, 2018}}</ref>
===2018: US Open champion, Indian Wells title, world No. 4===
[[File:Naomi Osaka (27849801707) (cropped).jpg|thumb|Osaka at the 2018 Nottingham Open]]
Following her lack of improvement in 2017, Osaka hired Sascha Bajin to be her coach in the offseason.<ref name=start-bajin>{{cite news |last1=Moorman |first1=Gale |title=Will Sascha Bajin be the key to open Naomi Osaka's game in 2018? |url=https://www.tennisworldusa.org/tennis/news/Tennis_Stories/49818/will-sascha-bajin-be-the-key-to-open-naomi-osaka-s-game-in-2018/ |accessdate=October 17, 2018 |work=Tennis World |date=December 13, 2017}}</ref><ref name=start-bajin-2>{{cite news |title=Coaching in the Bigs: Sascha Bajin on His Coaching Strategies |url=http://thetennischannel.com/news/more-stories/coaching-in-the-bigs-sascha-bajin-on-his-coaching-strategies |work=Tennis Channel |accessdate=October 17, 2018 |date=January 24, 2018}}</ref> In their second tournament together, Osaka produced her career best result at a Grand Slam event. At the [[2018 Australian Open – Women's Singles|Australian Open]], she reached the fourth round after defeating two top twenty players in [[Elena Vesnina]] and hometown favorite [[Ashleigh Barty]], ultimately losing to world No. 1 Simona Halep.<ref>{{cite web |title=Naomi Osaka rolls past Elena Vesnina to reach third round of Australian Open |url=https://www.japantimes.co.jp/sports/2018/01/18/more-sports/tennis/naomi-osaka-rolls-past-elena-vesnina-reach-third-round-australian-open/#.W9vKKxNKjaY |website=Japan Times |accessdate=November 2, 2018| agency = Associated Press}}</ref><ref>{{cite news|last1=Mitchell|first1=Kevin|title=Ashleigh Barty's Australian Open ended by assured Naomi Osaka|url=https://www.theguardian.com/sport/2018/jan/20/ashleigh-bartys-australian-open-ended-by-assured-naomi-osaka|accessdate=March 8, 2018|work=Guardian|date=January 20, 2018}}</ref><ref>{{cite news|last1=Newbery|first1=Piers|title=Australian Open: Simona Halep beats Naomi Osaka to reach quarter-finals|url=https://www.bbc.com/sport/tennis/42770775|accessdate=March 8, 2018|work=BBC|date=January 22, 2018}}</ref> This result helped her return to the top 50 within the next month.<ref name=wta-rankings/>


===2018: US Open champion, world No. 4===
At the [[2018 BNP Paribas Open|Indian Wells Open]], Osaka had the next big breakthrough of her career. Having never won a professional title or made it past the third round at a Premier Mandatory event, she won the tournament convincingly, only dropping one set in the middle round of the tournament. In the quarterfinals and semifinals, she defeated two top five opponents in Karolína Plíšková and Halep, the latter of which was her first victory over a current world No. 1 player.<ref name="pliskova-upset-2018">{{cite web |title=Osaka serves up Pliskova upset, books Halep semifinal |url=http://www.wtatennis.com/news/osaka-serves-pliskova-upset-books-halep-semifinal |website=WTA Tennis |accessdate=November 2, 2018}}</ref><ref name="halep-upset-2018">{{cite web |title=Osaka overwhelms Halep to reach Indian Wells final |url=http://www.wtatennis.com/news/osaka-overwhelms-halep-reach-indian-wells-final |website=WTA Tennis |accessdate=November 2, 2018}}</ref> She then closed out the tournament with a win in the final over fellow up-and-coming player [[Daria Kasatkina]], making her the youngest champion at the event in ten years.<ref name=indian-wells-title>{{cite web |title=Osaka conquers Kasatkina to win first title in Indian Wells |url=http://www.wtatennis.com/news/osaka-conquers-kasatkina-win-first-title-indian-wells |website=WTA Tennis |accessdate=November 2, 2018}}</ref> With her first title, she surged past her previous career high ranking to No. 22 in the world.<ref name=wta-rankings/> Osaka played the following week as well at the [[2018 Miami Open|Miami Open]] and extended her win streak by one additional match in her first ever meeting against her childhood idol [[Serena Williams]], who was competing in just her second tournament back from maternity leave.<ref name="first-serena-encounter">{{cite web |title=Naomi Osaka had the greatest reaction to beating Serena Williams at Miami Open: 'Omg' |url=https://ftw.usatoday.com/2018/03/naomi-osaka-beat-serena-williams-miami-open-omg-twitter-come-on-interview-tennis-video |website=USA Today |accessdate=November 2, 2018| first1 = Alysha | last1 = Tsuji }}</ref>
[[File:Naomi Osaka (27849801707) (cropped).jpg|alt=Osaka hitting a forehand|thumb|Osaka at the 2018 Nottingham Open]]
Following her lack of improvement in 2017, Osaka hired Sascha Bajin to be her coach in the off-season.<ref name=start-bajin>{{cite news |last1=Moorman |first1=Gale |title=Will Sascha Bajin be the key to open Naomi Osaka's game in 2018? |url=https://www.tennisworldusa.org/tennis/news/Tennis_Stories/49818/will-sascha-bajin-be-the-key-to-open-naomi-osaka-s-game-in-2018/ |access-date=October 17, 2018 |work=Tennis World |date=December 13, 2017}}</ref><ref name=start-bajin-2>{{cite news |title=Coaching in the Bigs: Sascha Bajin on His Coaching Strategies |url=http://thetennischannel.com/news/more-stories/coaching-in-the-bigs-sascha-bajin-on-his-coaching-strategies |work=Tennis Channel |access-date=October 17, 2018 |date=January 24, 2018 |archive-date=November 16, 2018 |archive-url=https://web.archive.org/web/20181116000145/http://thetennischannel.com/news/more-stories/coaching-in-the-bigs-sascha-bajin-on-his-coaching-strategies |url-status=dead }}</ref> In their second tournament together, Osaka produced her career best result at a major event. At the [[2018 Australian Open – Women's singles|Australian Open]], she reached the fourth round after defeating two top-20 players in [[Elena Vesnina]] and hometown favorite [[Ashleigh Barty]], ultimately losing to world No. 1, Simona Halep.<ref>{{cite web |title=Naomi Osaka rolls past Elena Vesnina to reach third round of Australian Open |url=https://www.japantimes.co.jp/sports/2018/01/18/more-sports/tennis/naomi-osaka-rolls-past-elena-vesnina-reach-third-round-australian-open/ |website=Japan Times |access-date=November 2, 2018 |agency=Associated Press |archive-date=March 30, 2019 |archive-url=https://web.archive.org/web/20190330151912/https://www.japantimes.co.jp/sports/2018/01/18/more-sports/tennis/naomi-osaka-rolls-past-elena-vesnina-reach-third-round-australian-open/ |url-status=dead }}</ref><ref>{{cite news|last1=Mitchell|first1=Kevin|title=Ashleigh Barty's Australian Open ended by assured Naomi Osaka|url=https://www.theguardian.com/sport/2018/jan/20/ashleigh-bartys-australian-open-ended-by-assured-naomi-osaka|access-date=March 8, 2018|work=Guardian|date=January 20, 2018}}</ref><ref>{{cite news|last1=Newbery|first1=Piers|title=Australian Open: Simona Halep beats Naomi Osaka to reach quarter-finals|url=https://www.bbc.com/sport/tennis/42770775|access-date=March 8, 2018|work=BBC|date=January 22, 2018}}</ref> This result helped her return to the top 50 within the next month.<ref name=wta-rankings/>


At the [[2018 BNP Paribas Open|Indian Wells Open]], Osaka had the next big breakthrough of her career. Having never won a professional title or made it past the third round at a Premier Mandatory event, she won the tournament convincingly, only dropping one set in the middle round of the tournament. In the quarterfinals and semifinals, she defeated two top-five opponents in Karolína Plíšková and Halep, the latter of which was her first victory over a current No. 1 player.<ref name="pliskova-upset-2018">{{cite web |title=Osaka serves up Pliskova upset, books Halep semifinal |url=http://www.wtatennis.com/news/osaka-serves-pliskova-upset-books-halep-semifinal |website=WTA Tennis |access-date=November 2, 2018}}</ref><ref name="halep-upset-2018">{{cite web |title=Osaka overwhelms Halep to reach Indian Wells final |url=http://www.wtatennis.com/news/osaka-overwhelms-halep-reach-indian-wells-final |website=WTA Tennis |access-date=November 2, 2018}}</ref> She then closed out the tournament with a win in the final over fellow up-and-coming player [[Daria Kasatkina]], making her the youngest champion at the event in ten years.<ref name=indian-wells-title>{{cite web |title=Osaka conquers Kasatkina to win first title in Indian Wells |url=http://www.wtatennis.com/news/osaka-conquers-kasatkina-win-first-title-indian-wells |website=WTA Tennis |access-date=November 2, 2018}}</ref> With her first title, she surged past her previous career-high ranking to No. 22 in the world.<ref name=wta-rankings/> Osaka played the following week as well at the [[2018 Miami Open|Miami Open]] and extended her win streak by one additional match in her first meeting against her childhood idol, [[Serena Williams]], who was competing in just her second tournament back from maternity leave.<ref name="first-serena-encounter">{{cite web |title=Naomi Osaka had the greatest reaction to beating Serena Williams at Miami Open: 'Omg' |url=https://ftw.usatoday.com/2018/03/naomi-osaka-beat-serena-williams-miami-open-omg-twitter-come-on-interview-tennis-video |website=USA Today |access-date=November 2, 2018| first1 = Alysha | last1 = Tsuji |date=March 22, 2018 }}</ref>
After her success in the early months of the season, Osaka had a relatively quiet middle of the year. She reached the third round at both the [[2018 French Open|French Open]] and [[2018 Wimbledon Championships|Wimbledon]], matching her best performance at each tournament.<ref>{{Cite news|url=http://www.tennis.com/pro-game/2018/06/madison-keys-naomi-osaka-2018-french-open-roland-garros/74268/|title=Keys showed "veteran moves" and capacity for clay in win over Osaka|last=Tignor|first=Steve|date=June 1, 2018|work=Tennis.com|access-date=September 10, 2018}}</ref><ref>{{Cite news|url=http://www.wtatennis.com/news/kerber-cruises-past-osaka-make-wimbledon-fourth-round|title=Kerber cruises past Osaka to make Wimbledon fourth round|last=Juzwiak|first=Jason|date=July 7, 2018|work=WTA Tennis|access-date=September 10, 2018|language=en}}</ref> The closest she came to winning another tournament was on grass at the [[2018 Nottingham Open|Nottingham Open]], where she lost to top seed Barty in the semifinals.<ref>{{Cite news|url=http://www.wtatennis.com/news/barty-overwhelms-osaka-nottingham-semis|title=Barty overwhelms Osaka in Nottingham semis|last=Chiesa|first=Victoria|date=June 16, 2018|work=WTA Tennis|access-date=September 10, 2018}}</ref> Osaka did not have another breakthrough result until the [[2018 US Open (tennis)|US Open]], where she won her second title of the year. Like at Indian Wells, she only dropped one set in the middle round of the event, this time to No. 20 [[Aryna Sabalenka]]. In the three early rounds, she only lost a total of seven games and notably recorded a [[Bagel (tennis)|double bagel]] victory against [[Aliaksandra Sasnovich]].<ref name="double-bagel">{{cite web |title=Is Naomi Osaka ready for a Grand Slam title? Is Naomi Osaka ready for a Grand Slam title? |url=https://www.usopen.org/en_US/news/articles/2018-09-03/is_naomi_osaka_ready_for_a_grand_slam_title.html |website=US Open |accessdate=November 2, 2018}}</ref> Osaka was drawn against Madison Keys in the semifinals, and was able to avenge her tough loss from the 2016 US Open to advance to the final.<ref>{{cite web |title=Dream Come True: Osaka beats Keys to set up final against Serena |url=http://www.tennis.com/pro-game/2018/09/naomi-osaka-madison-keys-us-open-semifinals-wta-tour-tennis-new-york/76780/ |website=Tennis.com |accessdate=November 2, 2018| first1 = Joel | last1 = Drucker}}</ref> In the [[2018 US Open – Women's Singles final|final]], she defeated Serena Williams for the second time in 2018 to win her first major title. The match was marred by an on-court dispute between Williams and the umpire highlighted by Williams receiving a game penalty and boos from the crowd both during the match and the award ceremony.<ref name="us-open-final-washington-post">{{cite web|url=https://www.washingtonpost.com/sports/tennis/naomi-osaka-upsets-serena-williams-who-received-game-penalty-to-win-2018-us-open/2018/09/08/089e1df4-b39f-11e8-aed9-001309990777_story.html|title=Naomi Osaka upsets Serena Williams, who received game penalty, to win 2018 U.S. Open|last=Wallace|first=Ava|date=September 8, 2018|website=[[Washington Post]]}}</ref> Osaka later said that the win was "a little bit bittersweet" and "it wasn't necessarily the happiest memory."<ref>{{cite news |title=Naomi Osaka: US Open title 'not the happiest moment' after Serena Williams' outbursts |url=https://www.bbc.com/sport/tennis/45711180 |accessdate=October 4, 2018 |work=BBC Sport |date=October 1, 2018}}</ref> Nonetheless, she became the first Japanese woman to contest a Grand Slam singles final and the first Japanese Grand Slam singles champion.<ref>{{Cite news|url=https://www.standard.co.uk/sport/tennis/naomi-osaka-becomes-first-japanese-woman-to-reach-a-grand-slam-final-a3929801.html|title=Naomi Osaka becomes first Japanese woman to reach a Grand Slam final|last=Newman|first=Paul|date=September 7, 2018|work=Evening Standard|access-date=September 10, 2018}}</ref><ref name=us-open-final>{{cite web |title=Osaka stuns Serena, captures first Grand Slam title at US Open |url=http://www.wtatennis.com/news/osaka-stuns-serena-captures-first-grand-slam-title-us-open |website=WTA Tennis |accessdate=November 2, 2018| first1 = David | last1 = Kane}}</ref>


After her success in the early months of the season, Osaka had a rather quiet middle of the year. She reached the third round at both the [[2018 French Open|French Open]] and [[2018 Wimbledon Championships|Wimbledon]], matching her best performance at each tournament.<ref>{{Cite news|url=http://www.tennis.com/pro-game/2018/06/madison-keys-naomi-osaka-2018-french-open-roland-garros/74268/|title=Keys showed "veteran moves" and capacity for clay in win over Osaka|last=Tignor|first=Steve|date=June 1, 2018|work=Tennis.com|access-date=September 10, 2018}}</ref><ref>{{Cite news|url=http://www.wtatennis.com/news/kerber-cruises-past-osaka-make-wimbledon-fourth-round|title=Kerber cruises past Osaka to make Wimbledon fourth round|last=Juzwiak|first=Jason|date=July 7, 2018|work=WTA Tennis|access-date=September 10, 2018|language=en}}</ref> The closest she came to winning another tournament was on grass at the [[2018 Nottingham Open|Nottingham Open]], where she lost to top seed Barty in the semifinals.<ref>{{Cite news|url=http://www.wtatennis.com/news/barty-overwhelms-osaka-nottingham-semis|title=Barty overwhelms Osaka in Nottingham semis|last=Chiesa|first=Victoria|date=June 16, 2018|work=WTA Tennis|access-date=September 10, 2018}}</ref>
Now ranked in the top ten, Osaka extended her win streak to ten matches by reaching the final at the [[2018 Toray Pan Pacific Open|Pan Pacific Open]] in Tokyo for the second time in her career. Plíšková was able to end her win streak in the final.<ref>{{cite web |title='With every win I feel better' – Pliskova powers to Tokyo title, snaps Osaka streak |url=http://www.wtatennis.com/news/every-win-i-feel-better-pliskova-powers-tokyo-title-snaps-osaka-streak |website=WTA Tennis |accessdate=November 2, 2018}}</ref> Osaka then reached the semifinals at the Premier Mandatory [[2018 China Open – Women's Singles|China Open]].<ref>{{cite web |title=Anastasija Sevastova defeats Naomi Osaka in China Open semifinals |url=https://www.japantimes.co.jp/sports/2018/10/06/more-sports/tennis/anastasija-sevastova-defeats-naomi-osaka-china-open-semifinals/ |website=Japan Times |accessdate=November 2, 2018}}</ref> With her third consecutive deep run, she rose to a career best ranking of world No. 4, matching the record of [[Kimiko Date]] and [[Kei Nishikori]] for the highest ranking held by a Japanese player in history.<ref>{{cite web |title=Naomi Osaka historically reaches No. 4 in the WTA rankings |url=http://www.tennis.com/pro-game/2018/10/naomi-osaka-historically-reaches-no-4-wta-rankings/77452/ |website=Tennis.com |accessdate=November 2, 2018| first1 = John | last1 = Berkok}}</ref> Osaka closed out the year by participating at the [[2018 WTA Finals|WTA Finals]], where she was grouped with [[Sloane Stephens]], Angelique Kerber, and [[Kiki Bertens]]. She lost all three of her round robin matches, notably retiring against Bertens due to a [[pulled hamstring|hamstring injury]] to end her season.<ref>{{cite web |title='It's never nice to win a match like this': Bertens into WTA Finals SF after Osaka injury |url=http://www.wtatennis.com/news/its-never-nice-win-match-bertens-wta-finals-sf-after-osaka-injury |website=WTA Tennis |accessdate=November 2, 2018}}</ref> Osaka finished the year as the WTA Tour leader in prize money, having earned almost $6.4 million.<ref name="most-money-2018">{{cite web |title=U.S. Open Champion Naomi Osaka Tops Simona Halep In Money Rankings |url=https://www.forbes.com/sites/daniellerossingh/2018/10/30/us-open-champion-naomi-osaka-tops-simona-halep-in-money-rankings/#6de64b53c81e |website=Forbes |accessdate=November 3, 2018}}</ref>


Osaka did not have another breakthrough result until the [[2018 US Open (tennis)|US Open]], where she won her second title of the year. Like at Indian Wells, she only dropped one set in the middle round of the event, this time to No. 20 [[Aryna Sabalenka]]. In the three early rounds, she only lost a total of seven games and notably recorded a [[Bagel (tennis)|double bagel]] victory against [[Aliaksandra Sasnovich]].<ref name="double-bagel">{{cite web |title=Is Naomi Osaka ready for a Grand Slam title? Is Naomi Osaka ready for a Grand Slam title? |url=https://www.usopen.org/en_US/news/articles/2018-09-03/is_naomi_osaka_ready_for_a_grand_slam_title.html |website=US Open |access-date=November 2, 2018}}</ref> Osaka was drawn against Madison Keys in the semifinals, and was able to avenge her tough loss from the 2016 US Open to advance to the final.<ref>{{cite web |title=Dream Come True: Osaka beats Keys to set up final against Serena |url=http://www.tennis.com/pro-game/2018/09/naomi-osaka-madison-keys-us-open-semifinals-wta-tour-tennis-new-york/76780/ |website=Tennis.com |access-date=November 2, 2018| first1 = Joel | last1 = Drucker}}</ref> In the [[2018 US Open – Women's singles final|final]], she defeated Serena Williams for the second time in 2018 to win her first major title. The match was marred and overshadowed by an on-court dispute between Williams and the umpire highlighted by Williams receiving a game penalty. Boos from the crowd continued during the match and the award ceremony.<ref name="us-open-final-washington-post">{{cite news|last=Wallace|first=Ava|date=September 8, 2018|title=Naomi Osaka upsets Serena Williams, who received game penalty, to win 2018 U.S. Open|url=https://www.washingtonpost.com/sports/tennis/naomi-osaka-upsets-serena-williams-who-received-game-penalty-to-win-2018-us-open/2018/09/08/089e1df4-b39f-11e8-aed9-001309990777_story.html|access-date=September 14, 2020|newspaper=[[The Washington Post]]}}</ref> Osaka later said that the win was "a little bit bittersweet" and "it wasn't necessarily the happiest memory."<ref>{{cite news |title=Naomi Osaka: US Open title 'not the happiest moment' after Serena Williams' outbursts |url=https://www.bbc.com/sport/tennis/45711180 |access-date=October 4, 2018 |work=BBC Sport |date=October 1, 2018}}</ref> Nonetheless, she became the first Japanese woman to contest a major singles final and the first Japanese Grand Slam singles champion.<ref>{{Cite news|url=https://www.standard.co.uk/sport/tennis/naomi-osaka-becomes-first-japanese-woman-to-reach-a-grand-slam-final-a3929801.html|title=Naomi Osaka becomes first Japanese woman to reach a Grand Slam final|last=Newman|first=Paul|date=September 7, 2018|work=Evening Standard|access-date=September 10, 2018}}</ref><ref name=us-open-final>{{cite web |title=Osaka stuns Serena, captures first Grand Slam title at US Open |url=http://www.wtatennis.com/news/osaka-stuns-serena-captures-first-grand-slam-title-us-open |website=WTA Tennis |access-date=November 2, 2018| first1 = David | last1 = Kane}}</ref>
===2019: Australian Open champion, world No. 1===
Osaka entered the [[2019 Australian Open|Australian Open]] as the fourth seed and also one of eleven players in contention for the world No. 1 ranking.<ref>{{cite web |title=Australian Open 2019: Eleven players vying for No.1 spot in Melbourne |url=https://www.wtatennis.com/news/australian-open-2019-eleven-players-vying-no1-spot-melbourne |website=WTA Tennis |accessdate=11 March 2019|first1 = Courtney | last1 = Nguyen}}</ref> She made it to the final against [[Petra Kvitová]], having beaten [[Hsieh Su-wei]] in the third round despite being one set, 2–4 and 0–40 down at one point.<ref>{{cite web |title=At Australian Open, Osaka Holds Off Hsieh, a Big-Seed Slayer With a Bedeviling Slice |url=https://www.nytimes.com/2019/01/19/sports/tennis/australian-open-osaka-hsieh.html |website=New York Times |accessdate=11 March 2019|first1 = Karen | last1 = Crouse}}</ref> [[Anastasija Sevastova]] also won the first set against her in the fourth round, while No. 8 [[Karolína Plíšková]] pushed her to three sets in the semifinals.<ref>{{cite web |title=Osaka outlasts Sevastova for first Australian Open quarterfinal |url=https://www.wtatennis.com/news/osaka-outlasts-sevastova-first-australian-open-quarterfinal |website=WTA Tennis |accessdate=11 March 2019}}</ref><ref>{{cite web |title=Naomi Osaka outplays Karolina Pliskova to reach Australian Open final |url=https://www.japantimes.co.jp/sports/2019/01/24/more-sports/tennis/naomi-osaka-outplays-karolina-pliskova-reach-australian-open-final/ |website=Japan Times |accessdate=11 March 2019 | agency = Associated Press}}</ref> After Osaka won the first set in the final, Kvitová saved three championship break points before breaking Osaka in back-to-back service games to win the second set. Nonetheless, Osaka recovered to win the championship. She was the first woman to win consecutive Grand Slam singles titles since Serena Williams in 2015, and was the first player to follow up her first Grand Slam singles title with another at the next such event since [[Jennifer Capriati]] in 2001.<ref>{{cite web |title=Top of the world: Osaka wins AO title, takes No. 1 ranking |url=https://ausopen.com/articles/match-report/top-world-osaka-wins-ao-title-takes-no1-ranking |website=Australian Open |accessdate=January 26, 2019| first1 = Matt |last1 = Trollope}}</ref> She also became the first Asian player to be ranked No. 1 in the world in singles.<ref>{{cite web |url=https://www.reuters.com/article/us-tennis-ausopen/osaka-beats-kvitova-to-win-australian-open-idUSKCN1PK0BL |title=Osaka edges Kvitova to claim Australian Open crown |first1=Sudipto |last1=Ganguly |date=January 26, 2019 |website=Reuters |access-date=January 26, 2019}}</ref><ref>{{cite web |title=Osaka clinches second straight Slam, No.1 ranking at Australian Open over Kvitova |url=https://www.wtatennis.com/news/osaka-clinches-second-straight-slam-no1-ranking-australian-open-over-kvitova |website=WTA Tennis |accessdate=11 March 2019}}</ref>


Now ranked in the top ten, Osaka extended her win streak to ten matches by reaching the final at the [[2018 Toray Pan Pacific Open|Pan Pacific Open]] in Tokyo for the second time in her career. Plíšková was able to end her win streak in the final.<ref>{{cite web |title='With every win I feel better' – Pliskova powers to Tokyo title, snaps Osaka streak |url=http://www.wtatennis.com/news/every-win-i-feel-better-pliskova-powers-tokyo-title-snaps-osaka-streak |website=WTA Tennis |access-date=November 2, 2018}}</ref> Osaka then reached the semifinals at the Premier Mandatory [[2018 China Open – Women's singles|China Open]].<ref>{{cite web |title=Anastasija Sevastova defeats Naomi Osaka in China Open semifinals |url=https://www.japantimes.co.jp/sports/2018/10/06/more-sports/tennis/anastasija-sevastova-defeats-naomi-osaka-china-open-semifinals/ |website=Japan Times |date=October 6, 2018 |access-date=November 2, 2018 |archive-date=May 21, 2022 |archive-url=https://web.archive.org/web/20220521031622/https://www.japantimes.co.jp/sports/2018/10/06/more-sports/tennis/anastasija-sevastova-defeats-naomi-osaka-china-open-semifinals/ |url-status=dead }}</ref> With her third consecutive deep run, she rose to a career-best ranking of world No. 4, matching the record of [[Kimiko Date]] and [[Kei Nishikori]] for the highest ranking held by a Japanese player in history.<ref>{{cite web |title=Naomi Osaka historically reaches No. 4 in the WTA rankings |url=http://www.tennis.com/pro-game/2018/10/naomi-osaka-historically-reaches-no-4-wta-rankings/77452/ |website=Tennis.com |access-date=November 2, 2018| first1 = John | last1 = Berkok}}</ref> Osaka closed out the year by participating at the [[2018 WTA Finals|WTA Finals]], where she was grouped with [[Sloane Stephens]], Angelique Kerber, and [[Kiki Bertens]]. She lost all three of her round-robin matches, notably retiring against Bertens due to a [[pulled hamstring|hamstring injury]] to end her season.<ref>{{cite web |title='It's never nice to win a match like this': Bertens into WTA Finals SF after Osaka injury |url=http://www.wtatennis.com/news/its-never-nice-win-match-bertens-wta-finals-sf-after-osaka-injury |website=WTA Tennis |date=October 26, 2018 |access-date=November 2, 2018}}</ref> Osaka finished the year as the WTA Tour leader in prize money, having earned almost $6.4&nbsp;million.<ref name="most-money-2018">{{cite web |title=U.S. Open Champion Naomi Osaka Tops Simona Halep In Money Rankings |url=https://www.forbes.com/sites/daniellerossingh/2018/10/30/us-open-champion-naomi-osaka-tops-simona-halep-in-money-rankings/#6de64b53c81e |website=Forbes |access-date=November 3, 2018}}</ref>
She split with her coach [[Sascha Bajin]] following the tournament.<ref name=bajin-split/>


===2019: Australian Open title, world No. 1===
Osaka failed to defend her title at [[2019 BNP Paribas Open|Indian Wells]], being defeated by [[Belinda Bencic]] in the fourth round. She suffered an early loss to [[Hsieh Su-wei]] at the [[2019 Miami Open]] before reaching her first clay court semifinal at the [[2019 Porsche Tennis Grand Prix|Stuttgart Open]], where she withdrew before the match due to an abdominal injury. At the [[2019 Mutua Madrid Open|Madrid Open]], she reached the quarter-final before losing to Bencic.<ref>{{cite news |title=Madrid Open: Naomi Osaka loses to Belinda Bencic; Simona Halep through |url=https://www.bbc.com/sport/tennis/48214307 |accessdate=30 May 2019 |work=BBC Sport |date=May 9, 2019}}</ref> She then had to withdraw from her [[2019 Italian Open (tennis)|Italian Open]] quarter-final match against Kiki Bertens due to a right hand injury.<ref>{{cite news |title=Naomi Osaka withdraws from Italian Open with right hand injury |url=https://www.japantimes.co.jp/sports/2019/05/17/tennis/naomi-osaka-withdraws-italian-open-right-hand-injury/ |accessdate=30 May 2019 |work=The Japan Times |agency=Associated Press |date=May 17, 2019}}</ref> Osaka struggled early on in the [[2019 French Open|French Open]], losing the first set of her opening round against [[Anna Karolína Schmiedlová]] without winning a game. She was able to come back and win the match in three sets, progressing to yet another difficult three-sets win over [[Victoria Azarenka]]. In the third round, Osaka was upset by [[Kateřina Siniaková]] in straight sets.
Osaka entered the [[2019 Australian Open|Australian Open]] as the fourth seed and also one of eleven players in contention for the world No. 1 ranking.<ref>{{cite web |title=Australian Open 2019: Eleven players vying for No.1 spot in Melbourne |url=https://www.wtatennis.com/news/australian-open-2019-eleven-players-vying-no1-spot-melbourne |website=WTA Tennis |access-date=March 11, 2019|first1 = Courtney | last1 = Nguyen}}</ref> She made it to the final against [[Petra Kvitová]], having beaten [[Hsieh Su-wei]] in the third round despite being one set, 2–4 and 0–40 down at one point.<ref>{{cite news |title=At Australian Open, Osaka Holds Off Hsieh, a Big-Seed Slayer With a Bedeviling Slice |url=https://www.nytimes.com/2019/01/19/sports/tennis/australian-open-osaka-hsieh.html |newspaper=The New York Times |access-date=March 11, 2019|first1 = Karen | last1 = Crouse|date=January 19, 2019 }}</ref> Anastasija Sevastova also won the first set against her in the fourth round, while No. 8 Karolína Plíšková pushed her to three sets in the semifinals.<ref>{{cite web |title=Osaka outlasts Sevastova for first Australian Open quarterfinal |url=https://www.wtatennis.com/news/osaka-outlasts-sevastova-first-australian-open-quarterfinal |website=WTA Tennis |access-date=March 11, 2019}}</ref><ref>{{cite web |title=Naomi Osaka outplays Karolina Pliskova to reach Australian Open final |url=https://www.japantimes.co.jp/sports/2019/01/24/more-sports/tennis/naomi-osaka-outplays-karolina-pliskova-reach-australian-open-final/ |website=Japan Times |access-date=March 11, 2019 |agency=Associated Press |archive-date=February 3, 2019 |archive-url=https://web.archive.org/web/20190203092434/https://www.japantimes.co.jp/sports/2019/01/24/more-sports/tennis/naomi-osaka-outplays-karolina-pliskova-reach-australian-open-final/ |url-status=dead }}</ref> After Osaka won the first set in the final, Kvitová saved three championship points before breaking Osaka in back-to-back service games to win the second set. Nonetheless, Osaka recovered to win the championship. She was the first woman to win consecutive major singles titles since Serena Williams in 2015, and was the first player to follow up her first Grand Slam singles title with another at the next such event since [[Jennifer Capriati]] in 2001.<ref>{{cite web |title=Top of the world: Osaka wins AO title, takes No. 1 ranking |url=https://ausopen.com/articles/match-report/top-world-osaka-wins-ao-title-takes-no1-ranking |website=Australian Open |access-date=January 26, 2019| first1 = Matt |last1 = Trollope}}</ref> She also became the first Asian player to be ranked No. 1 in the world in singles.<ref>{{cite web |url=https://www.reuters.com/article/us-tennis-ausopen/osaka-beats-kvitova-to-win-australian-open-idUSKCN1PK0BL |title=Osaka edges Kvitova to claim Australian Open crown |first1=Sudipto |last1=Ganguly |date=January 26, 2019 |website=Reuters |access-date=January 26, 2019}}</ref><ref>{{cite web |title=Osaka clinches second straight Slam, No.1 ranking at Australian Open over Kvitova |url=https://www.wtatennis.com/news/osaka-clinches-second-straight-slam-no1-ranking-australian-open-over-kvitova |website=WTA Tennis |access-date=March 11, 2019}}</ref> Despite this title, she parted ways with her coach [[Sascha Bajin]] following the tournament.<ref name=bajin-split/>


Osaka struggled after the Australian Open. She lost in the fourth and third rounds at the two Premier Mandatory tournaments in March, the [[2019 BNP Paribas Open|Indian Wells Open]] and the [[2019 Miami Open|Miami Open]].<ref>{{cite news |title=Osaka shrugs off Indian Wells upset |url=https://www.reuters.com/article/us-tennis-indianwells-osaka/osaka-shrugs-off-indian-wells-upset-idUSKBN1QU0GQ |website=Reuters |date=March 13, 2019 |access-date=November 24, 2019}}</ref><ref>{{cite web |title=Hsieh shocks Osaka to reach Miami Open fourth round |url=https://www.wtatennis.com/news/1449429/hsieh-shocks-osaka-to-reach-miami-open-fourth-round |website=WTA Tennis |access-date=November 24, 2019}}</ref> After beginning the clay-court season with a semifinal at the [[2019 Porsche Tennis Grand Prix|Stuttgart Grand Prix]] where she withdrew due to an abdominal injury,<ref>{{cite news |title=Naomi Osaka withdraws from Stuttgart Open semi-final with abdominal injury |work=BBC Sport |date=April 27, 2019 |url=https://www.bbc.com/sport/tennis/48077429 |access-date=November 24, 2019}}</ref> her best results were two quarterfinals at the [[2019 Mutua Madrid Open|Madrid Open]] and the [[2019 Italian Open (tennis)|Italian Open]].<ref>{{cite news |title=Madrid Open: Naomi Osaka loses to Belinda Bencic; Simona Halep through |url=https://www.bbc.com/sport/tennis/48214307 |access-date=May 30, 2019 |website = BBC |date=May 9, 2019}}</ref> She also withdrew from the latter due to a right hand injury.<ref>{{cite news |title=Naomi Osaka withdraws from Italian Open with right hand injury |url=https://www.japantimes.co.jp/sports/2019/05/17/tennis/naomi-osaka-withdraws-italian-open-right-hand-injury/ |access-date=May 30, 2019 |website=The Japan Times |agency=Associated Press |date=May 17, 2019 |archive-date=May 30, 2019 |archive-url=https://web.archive.org/web/20190530124116/https://www.japantimes.co.jp/sports/2019/05/17/tennis/naomi-osaka-withdraws-italian-open-right-hand-injury/ |url-status=dead }}</ref> Osaka matched her best result at the [[2019 French Open|French Open]], losing to [[Kateřina Siniaková]] in the third round.<ref>{{cite web |title=Katerina Siniakova, doubles No. 1, ousts top seed Naomi Osaka |url=https://www.tennis.com/pro-game/2019/06/naomi-osaka-katerina-siniakova-2019-roland-garros-french-open/82157/ |website=Tennis.com |access-date=November 24, 2019}}</ref> During the grass-court season, Osaka lost in the early rounds to [[Yulia Putintseva]] at both tournaments she entered, including the first round at [[2019 Wimbledon Championships|Wimbledon]].<ref>{{cite web |title='Winner or error, as long as I'm winning the point' – Putintseva maintains Osaka mastery in Wimbledon stunner |url=https://www.wtatennis.com/news/1447141/winner-or-error-as-long-as-im-winning-the-point-putintseva-maintains-osaka-mastery-in-wimbledon-stunner |website=WTA Tennis |access-date=November 24, 2019}}</ref> As a result, she lost the No. 1 ranking to Ashleigh Barty.<ref name=wta-rankings/>
Entering the grass court season, Osaka was looking to return to form. However, she was defeated in the second round of [[2019 Birmingham Classic|Birmingham]] by [[Yulia Putintseva]]. With the loss, Osaka fell to world No. 2 after French Open champion [[Ashleigh Barty]] won the Birmingham title. Osaka was seeded second for [[2019 Wimbledon Championships|Wimbledon]] but lost in the first round, once again to Yulia Putintseva.


Before the US Open, Osaka made the quarterfinals at the two Premier 5 tournaments in August, the [[2019 Rogers Cup|Canadian Open]] and the [[2019 Western & Southern Open|Cincinnati Open]], where she was defeated by Serena Williams and [[Sofia Kenin]] respectively.<ref>{{cite web |title=Serena Williams secures first win over Naomi Osaka in Toronto |url=https://www.tennis.com/pro-game/2019/08/serena-williams-naomi-osaka-rogers-cup-toronto-quarterfinals-us-open-rematch/84232/ |website=Tennis.com |access-date=November 24, 2019}}</ref><ref>{{cite web |title=World No. 1 Naomi Osaka withdraws mid-match from Western & Southern Open with injury |url=https://www.cincinnati.com/story/sports/tennis/2019/08/16/world-no-1-naomi-osaka-withdraws-western-southern-open/2034780001/ |website=Cincinnati.com |access-date=November 24, 2019}}</ref> These performances helped her regain the No. 1 ranking so that she had the top seed at the [[2019 US Open (tennis)|US Open]]. Nonetheless, her title defense came to an end in the fourth round against [[Belinda Bencic]], who defeated her for the third time during the year.<ref>{{Cite web|url=https://www.wtatennis.com/news/brilliant-bencic-ends-osaka-title-defence-again-us-open|title=Brilliant Bencic ends Osaka title defence again at US Open|last=Macpherson|first=Alex|date=September 2, 2019|website=WTA Tennis|language=en|access-date=September 2, 2019}}</ref> She then fell to No. 4 in the world.<ref name=wta-rankings/> Following the tournament, Osaka went back to having her father as her coach.<ref name=restart-francois/> This change had an immediate impact, as Osaka won her next two tournaments. First, she won the [[2019 Toray Pan Pacific Open|Pan Pacific Open]] in her hometown of Osaka, defeating [[Anastasia Pavlyuchenkova]] in the final.<ref>{{cite web |title='I just wanted to win this really bad': Osaka powers to hometown title at Toray Pan Pacific Open |url=https://www.wtatennis.com/news/1485950/i-just-wanted-to-win-this-really-bad-osaka-powers-to-hometown-title-at-toray-pan-pacific-open |website=WTA Tennis |access-date=November 24, 2019}}</ref> Two weeks later, she won the Premier Mandatory [[2019 China Open (tennis)|China Open]]. During the tournament, she defeated reigning US Open champion [[Bianca Andreescu]] in the quarterfinals and world No. 1 and reigning French Open champion Ashleigh Barty in the final, both in three sets after losing the first.<ref>{{cite web |title='My attitude was trash': Naomi Osaka beats Barty in China Open final |url=https://www.theguardian.com/sport/2019/oct/06/attitude-trash-naomi-osaka-ashleigh-barty-china-open-final-tennis |website=The Guardian |date=October 6, 2019 |access-date=November 24, 2019}}</ref> This was Andreescu's first loss since March.<ref>{{cite web |title='I'm still here' – Osaka comeback halts Andreescu winning streak in Beijing quarterfinal thriller |url=https://www.wtatennis.com/news/1485677/im-still-here-osaka-comeback-halts-andreescu-winning-streak-in-beijing-quarterfinal-thriller |website=WTA Tennis |access-date=November 24, 2019}}</ref> These results brought her to No. 3 in the world.<ref name=wta-rankings/> At the end of the season, Osaka qualified for the [[2019 WTA Finals|WTA Finals]] for the second consecutive year. However, after defeating Petra Kvitová in her first match, she withdrew due to injury.<ref name=":0">{{cite web|last=Nguyen|first=Courtney|date=October 29, 2019|title=Naomi Osaka withdraws from Shiseido WTA Finals Shenzhen with injury, Bertens in as alternate|url=https://www.wtatennis.com/news/1485223/naomi-osaka-withdraws-from-shiseido-wta-finals-shenzhen-with-injury-bertens-in-as-alternate|access-date=November 24, 2019|website=WTA Tennis}}</ref>
At the beginning of August, Osaka made a post on Twitter discussing her struggles with the sport since the Australian Open.<ref>{{cite web|url=https://twitter.com/Naomi_Osaka_/status/1156730253856792576|title=I’ll leave this here just in case you feel like reading a book lol.|date=1 August 2019}}</ref> She played her first tournament of the North American hard court swing at the [[2019 Rogers Cup|Rogers Cup]], seeded second. She defeated qualifiers [[Tatjana Maria]] and [[Iga Świątek]] to reach the quarterfinals, where she was defeated by Serena Williams in their third career meeting. Despite this, Osaka returned to the world number one spot at the end of the tournament due to Ashleigh Barty's early loss.

===2020: Second US Open title===
[[File:Osaka-2020 (cropped) 2.png|alt=Osaka smiling as she walks across the court|upright=0.9|thumb|Osaka at the 2020 Cincinnati Open in New York]]
Osaka only played four tournaments in 2020, largely due to the [[COVID-19 pandemic]]. Before the tour shutdown, she lost to No. 2 Karolína Plíšková in a semifinal at the [[2020 Brisbane International|Brisbane International]] and [[Coco Gauff]] in the third round of the [[2020 Australian Open|Australian Open]], squandering a chance to serve for the match in the former.<ref>{{cite web |title=Pliskova saves match point, overcomes Osaka in Brisbane Classic: "I'm proud I hung in there" |url=https://www.wtatennis.com/news/1566320/pliskova-saves-match-point-overcomes-osaka-in-brisbane-classic-i-m-proud-i-hung-in-there- |website=WTA Tennis |access-date=January 16, 2021 | date = January 11, 2020}}</ref><ref>{{cite web |last1=Streeter |first1=Kurt |title=Coco Gauff Defeats Reigning Champion Naomi Osaka at Australian Open |url=https://www.nytimes.com/2020/01/24/sports/tennis/coco-gauff-osaka-australian-open.html |website=The New York Times |access-date=September 13, 2020 |date=January 24, 2020}}</ref> When the tour resumed, Osaka played the [[2020 Western & Southern Open|Cincinnati Open]] and the [[2020 US Open (tennis)|US Open]], which were held in back-to-back weeks in New York. Osaka did not lose a match at either event. At the Cincinnati Open, she defeated four players ranked in the 20s before defaulting in the final against Victoria Azarenka due to a hamstring injury.<ref name="wta-matches">{{cite web |title=Naomi Osaka Matches |url=https://www.wtatennis.com/players/319998/naomi-osaka/matches |website=WTA Tennis |access-date=January 16, 2021}}</ref><ref>{{cite web |title=Osaka WD from Western & Southern Open final |url=https://www.espn.com/tennis/story/_/id/29764988/naomi-osaka-hamstring-withdraws-western-southern-open-final-victoria-azarenka-champion |website=ESPN |access-date=September 13, 2020 |language=en |date=August 29, 2020}}</ref> Both Osaka and Azarenka reached the final again at the US Open, where Osaka became the first player to win a US Open women's singles final by coming from a set down since [[1994 US Open (tennis)|1994]]. This was her second US Open title in three years.<ref>{{cite web |title=For a second US Open, Naomi Osaka shows she wins for more than herself |url=https://www.tennis.com/pro-game/2020/09/second-us-open-naomi-osaka-shows-how-win-more-herself-platform-masks/90717/ |website=Tennis.com |access-date=September 13, 2020}}</ref><ref name="us-open-2020">{{Cite web |url=https://www.nytimes.com/2020/09/12/sports/tennis/naomi-osaka-us-open-title.html |website=The New York Times |date=September 12, 2020 |access-date=September 14, 2020 |language=en-US |last=Clarey |first=Christopher |title=Naomi Osaka, While Rallying for Social Justice, Wins U.S. Open Title}}</ref> Following the US Open, Osaka skipped the [[2020 French Open|French Open]] and ended her season because of her lingering hamstring injury.<ref>{{cite web|url=https://www.bbc.co.uk/sport/tennis/54200496|title=French Open 2020: Naomi Osaka pulls out with hamstring injury|website=BBC Sport|date=September 18, 2020|access-date=February 18, 2021}}</ref>

During both of these tournaments in New York, Osaka drew attention for her activism. She had initially withdrawn from the Cincinnati Open before the semifinal to raise awareness for the [[Shooting of Jacob Blake|police shooting of Jacob Blake]], only staying in the tournament after they chose to support her cause by postponing the event for a day.<ref name="blake-shooting">{{cite web |title=Naomi Osaka stops playing at Cincy Open as part of social justice protest |url=https://english.kyodonews.net/news/2020/08/afee54557e62-breaking-news-osaka-will-not-play-cincinnati-semi-joins-stand-against-police-violence.html |website=Kyodo News |access-date=January 16, 2021 | date = August 27, 2020}}</ref> At the US Open, Osaka walked onto the court for her seven matches wearing a different black mask, each of which with the name of an African American who had been killed in recent years often without significant repercussions.<ref name=seven-masks>{{Cite web|last=Ramsay|first=George|title=These are the Black victims Naomi Osaka is honoring on face masks at the US Open|url=https://edition.cnn.com/2020/09/11/tennis/naomi-osaka-us-open-face-mask-spt-intl/index.html|access-date=September 14, 2020|website=CNN| date = September 14, 2020}}</ref>

===2021: Australian Open title, mental health issues===
Osaka was seeded third at the [[2021 Australian Open – Women's singles|2021 Australian Open]]. She recorded straight-sets wins over Anastasia Pavlyuchenkova, [[Caroline Garcia]], and [[Ons Jabeur]], before defeating [[Garbiñe Muguruza]] in three sets in the fourth round despite facing match points during the third set (the only match in which she lost a set during the tournament). She went on to defeat Hsieh Su-wei in the quarterfinals, Serena Williams in the semifinals, and 22nd seed [[Jennifer Brady]]<ref>{{Cite web|author=Matias Grez|title=Naomi Osaka overcomes Jennifer Brady to win second Australian Open title|url=https://edition.cnn.com/2021/02/20/tennis/australian-open-final-naomi-osaka-jennifer-brady-spt-intl/index.html|access-date=March 9, 2021|website=CNN|date=February 20, 2021 }}</ref> in the final to claim her second Australian Open title.<ref>{{cite web|url=https://www.theguardian.com/sport/2021/feb/20/naomi-osaka-beats-jennifer-brady-to-win-second-australian-open-title-tennis|title=Naomi Osaka overpowers Jennifer Brady to win second Australian Open|date=February 20, 2021|work=Guardian|access-date= February 22, 2021}}</ref>
She became one of only three players in the Open Era to win her first four Grand Slam finals, alongside [[Roger Federer]] and [[Monica Seles]].<ref>{{cite web|url=https://www.espn.com/tennis/story/_/id/30933256/australian-open-2021-stats-naomi-osaka-emulates-roger-federer-monica-seles-continues-hardcourt-dominance|title=Australian Open 2021 stats: Naomi Osaka emulates Roger Federer and Monica Seles; continues hardcourt dominance|date=February 20, 2021|publisher=[[ESPN]]}}</ref><ref>{{cite news|url=https://www.espn.co.uk/tennis/story/_/id/30933190/australian-open-2021-naomi-osaka-beats-jennifer-brady-straight-sets-win-women-title|title=Australian Open 2021 – Naomi Osaka beats Jennifer Brady in straight sets to win women's title|work=ESPN|date=February 20, 2021}}</ref>

Osaka returned to the [[2021 Miami Open|Miami Open]] as the second seed, making the quarterfinals for the first time. She lost the quarterfinal in a shock defeat to [[Maria Sakkari]], winning just four games.<ref>{{cite web|url=https://www.wtatennis.com/news/2080981/sakkari-ends-osaka-winning-streak-in-miami-quarters|title=Sakkari Ends Osaka Winning Streak in Miami Quarters|work=WTA Tennis|date=March 31, 2021|access-date=June 3, 2021}}</ref> As a result, Osaka missed out on regaining the No. 1 ranking.

Osaka was seeded second at the [[2021 French Open – Women's singles|French Open]]. Shortly before the start of the tournament, she announced that she would not conduct her mandatory media assignments.<ref>{{cite web|url=https://edition.cnn.com/2021/05/26/tennis/naomi-osaka-no-press-conferences-at-french-open-spt-intl/index.html|title=Naomi Osaka says she won't do press conferences during the French Open|work=CNN|first=Jill|last=Martin|date=May 27, 2021|access-date=June 1, 2021}}</ref> After Osaka won her first match in straight sets and did not hold a press conference, she was fined $15,000 and threatened with rising levels of fines and expulsion.<ref>{{cite web|url=https://www.theguardian.com/sport/2021/may/30/french-open-womens-singles-naomi-osaka-patricia-tig|title=Naomi Osaka fined for media snub and threatened with French Open expulsion|work=The Guardian|last=Carayol|date=May 30, 2021|access-date=June 1, 2021}}</ref> The following day, she announced her withdrawal from the tournament, citing mental health issues.<ref>{{cite web|url=https://www.theguardian.com/sport/2021/may/31/naomi-osaka-withdraws-french-open-press-conference-fines-tennis|title=Naomi Osaka withdraws from French Open amid row over press conferences|work=The Guardian|first=Tumaini|last=Carayol|date=May 31, 2021|access-date=June 1, 2021}}</ref> Many fellow athletes and sponsors have voiced support for Osaka, with some noting a rarely discussed issue of mental health, although the overall reaction from the wider tennis community was mixed.<ref>{{cite news |last1=McCurry |first1=Justin |last2=Hytner |first2=Mike |title='Courageous': Japanese athletes and sponsors voice support for Naomi Osaka |url=https://www.theguardian.com/sport/2021/jun/02/courageous-japanese-athletes-and-sponsors-voice-support-for-naomi-osaka |work=The Guardian |date=June 2, 2021 |language=en}}</ref> On June 17, Osaka's agent announced that she would not participate in the upcoming [[2021 Wimbledon Championships|Wimbledon Championships]] but would take part in the [[2020 Olympic Games|Tokyo Olympics]].<ref>{{cite news |last1=Lev |first1=Jacob |last2=Church |first2=Ben |title=Naomi Osaka will miss Wimbledon but plans on Tokyo Olympics return, says agent |url=https://edition.cnn.com/2021/06/17/tennis/naomi-osaka-wimbledon-tokyo-olympics-spt-intl/index.html |work=CNN |date=June 17, 2021 |language=en}}</ref><ref>{{cite news |title=Naomi Osaka's Loss Gives Tokyo Its Latest Olympic Setback |url=https://www.nytimes.com/2021/07/27/sports/tennis/naomi-osaka-upset.html |newspaper=The New York Times|date=July 27, 2021 |last1=Futterman |first1=Matthew }}</ref>

Osaka would later return to action at the [[2021 Western & Southern Open|Cincinnati Open]] where she was defending finalist. She beat Coco Gauff in the second round but was upset by [[Jil Teichmann]] in the third round, both in three sets.

At the [[2021 US Open – Women's singles|US Open]], Osaka failed to defend her title, losing her composure and the match to the eventual tournament runner-up, Canadian [[Leylah Fernandez]] in the third round, despite serving for the match in the second set. During the match, Osaka threw her racket and received a code violation for hitting a ball into the stands.<ref>{{cite web |url=https://www.theguardian.com/sport/2021/sep/04/naomi-osaka-leylah-fernandez-us-open-upset | title=Tearful Naomi Osaka questions future after US Open loss to Leylah Fernandez|work=The Guardian| date=September 4, 2021 | access-date=September 4, 2021}}</ref> In her post-match press conference, Osaka announced another hiatus from the sport "for a while", revealing that winning did not make her happy anymore.<ref>{{cite news |last1=Fendrich |first1=Howard |title=Osaka weighs another break from tennis after US Open loss |url=https://apnews.com/article/sports-tennis-us-open-tennis-championships-osaka-eed369edabccd64666fcd43889b5db61 |access-date=January 22, 2022 |work=AP News |date=September 4, 2021}}</ref>

===2022: Miami Open final===
Osaka returned to competition at the [[2022 Melbourne Summer Set 1|Melbourne Summer Set 1]] tournament seeded No. 1 and made the semifinals, before withdrawing due to an abdominal injury.<ref>{{cite news |last1=El-Bawab |first1=Nadine |title=Naomi Osaka withdraws from Melbourne tournament due to injury |url=https://abcnews.go.com/US/naomi-osaka-withdraws-melbourne-tournament-due-injury/story?id=82149873 |access-date=February 2, 2022 |work=ABC News|date=January 9, 2022}}</ref> Her next tournament was the [[2022 Australian Open – Women's singles|Australian Open]], where she was seeded 13th and attempting to defend her title. However, she was eliminated in the third round by Amanda Anisimova, in three sets.<ref>{{cite news |last1=Jurejko |first1=Jonathan |title=Australian Open: Naomi Osaka proud despite Amanda Anisimova defeat |url=https://www.bbc.com/sport/tennis/60085418 |access-date=January 22, 2022 |work=BBC Sport |date=January 21, 2022}}</ref> Osaka described being happy despite the loss and discussed steps she is taking to improve her mental health and have "more fun on the court".<ref>{{cite web |last1=Pye |first1=John |title=Naomi Osaka Falls In Third Round At Australian Open |url=https://www.nbcphiladelphia.com/news/sports/naomi-osaka-australian-open-loss-third-round/3114276/ |website=NBC10 Philadelphia |access-date=January 22, 2022 |date=January 21, 2022}}</ref><ref>{{cite news |last1=Hess |first1=Liam |title=Naomi Osaka Is Out in Another Shock Defeat at the Australian Open |url=https://www.vogue.com/article/naomi-osaka-shock-defeat-australian-open |access-date=January 22, 2022 |work=Vogue |date=January 21, 2022}}</ref>

She dropped 71 spots in the WTA rankings to No. 85 following the tournament, with the tournament absences in 2021 contributing to the drop.<ref>{{cite news |author=<!-- No byline provided -->|title=Naomi Osaka falls to No. 85 in world rankings |url=https://www.japantimes.co.jp/sports/2022/01/31/tennis/osaka-ranking-fall/ |access-date=February 2, 2022 |work=The Japan Times |date=January 31, 2022}}</ref>

In March, Osaka entered the [[2022 BNP Paribas Open – Women's singles|Indian Wells Open]] where she beat Sloane Stephens in the first round, but lost to [[Veronika Kudermetova]] in straight sets in the second. Osaka was upset by a heckler in the crowd during the second round and was in tears during the match. Interviewed after the match, she compared her treatment to heckling at the tournament in 2001 that led the [[Williams sisters#Boycott of the Indian Wells Masters|Williams sisters to boycott]] it for 13 years.<ref>{{cite news |url=https://www.theguardian.com/sport/2022/mar/13/naomi-osaka-reduced-to-tears-heckled-tennis-indian-wells-defeat |title=Naomi Osaka reduced to tears after being heckled in Indian Wells defeat |work=[[The Guardian]] |date=March 13, 2022 |access-date=March 14, 2022 }}</ref>

The following week, Osaka entered the [[2022 Miami Open – Women's singles|Miami Open]]. She reached her first final since the 2021 Australian Open after defeating 22nd seed Belinda Bencic in the semifinals. Ranked 77 at the time, she became the lowest ranked finalist in the tournament's history. However, she lost the final to second seed [[Iga Świątek]], in straight sets.<ref>{{Cite web |date=March 31, 2022 |title=Osaka fires 18 aces, overcomes Bencic to reach first Miami Open final |url=https://www.wtatennis.com/news/2556341/osaka-fires-18-aces-overcomes-bencic-to-reach-first-miami-open-final |url-status=live |archive-url=https://web.archive.org/web/20220401064714/https://www.wtatennis.com/news/2556341/osaka-fires-18-aces-overcomes-bencic-to-reach-first-miami-open-final |archive-date=April 1, 2022 |access-date=March 31, 2022 |publisher=[[Women's Tennis Association]]}}</ref>

Following a right ankle injury at the [[2022 Mutua Madrid Open – Women's singles|Madrid Open]], Osaka withdrew from the [[Italian Open (tennis)|Italian Open]].<ref>{{Cite web |date=May 9, 2022 |title=Carlos Alcaraz and Naomi Osaka withdraw from Italian Open |url=https://www.ctvnews.ca/sports/carlos-alcaraz-and-naomi-osaka-withdraw-from-italian-open-1.5894714 |access-date=May 9, 2022 |website=CTVNews |language=en}}</ref> On May 23, she lost in the first round of the [[2022 French Open|French Open]] to Anisimova.<ref>{{Cite news |last=Clarey |first=Christopher |date=May 23, 2022 |title=Naomi Osaka Is Out in First Round of the French Open |language=en-US |work=The New York Times |url=https://www.nytimes.com/2022/05/23/sports/tennis/naomi-osaka-french-open.html |access-date=May 23, 2022 |issn=0362-4331}}</ref>

Playing for the first time since the French Open, Osaka won her first-round match at [[Silicon Valley Classic|San Jose]] against [[Zheng Qinwen]] in three sets, but lost in the next round to Coco Gauff, in straight sets.<ref>{{Cite web |title=Naomi Osaka takes wild card into San Jose |url=https://www.wtatennis.com/news/2682418/naomi-osaka-takes-wild-card-into-san-jose |access-date=August 13, 2022 |website=Women's Tennis Association |language=en}}</ref><ref>{{Cite web |last=Tennis.com |title=Coco Gauff holds off late fightback to defeat Naomi Osaka and reach quarterfinals in San Jose |url=https://www.tennis.com/news/articles/coco-gauff-defeats-naomi-osaka-to-reach-san-jose-quarterfinals |access-date=August 13, 2022 |website=Tennis.com |language=en}}</ref> At the [[Canadian Open (tennis)|Canadian Open]], Osaka retired from her first match against [[Kaia Kanepi]] due to back injury.<ref>{{Cite magazine |last=Williams |first=Madison |title=Naomi Osaka Withdraws From Canadian Open Match With Injury |url=https://www.si.com/tennis/2022/08/10/naomi-osaka-withdraws-from-canadian-open-match-with-back-injury |access-date=August 13, 2022 |magazine=Sports Illustrated |language=en-us}}</ref> Against home favorite [[Danielle Collins]], Osaka started positive into the [[2022 US Open (tennis)|US Open]] but lost the first set in a tiebreak, and her first-round match in two sets. Her troubles continued at the [[2022 Toray Pan Pacific Open|Pan Pacific Open]] where, as the defending champion, she withdrew in the second round citing abdominal pain. She had played only one game in her first round match against [[Daria Gavrilova]] who retired due to a knee injury.<ref>{{cite web | url=https://www.wtatennis.com/news/2799025/osaka-withdraws-from-tokyo-haddad-maia-through-to-quarterfinals | title=Osaka withdraws from Tokyo; Haddad Maia through to quarterfinals }}</ref>

===2023: Pregnancy and hiatus===
Days before the Australian Open, Osaka announced her withdrawal from the championships, as she was expecting her first child with rapper [[Cordae]].<ref name=":1">{{cite web|url-status=|url=https://www.tennis.com/news/articles/naomi-osaka-expecting-first-child-with-rapper-cordae|title=Naomi Osaka expecting first child with rapper Cordae|last=Kane|first=David|date=January 11, 2023|website=[[Tennis (magazine)|Tennis.com]]|archive-url=https://archive.today/20230111181520/https://www.tennis.com/news/articles/naomi-osaka-expecting-first-child-with-rapper-cordae|archive-date=January 11, 2023|access-date=January 11, 2023}}</ref> In her withdrawal message, she confirmed with fans that she would be back for the Australian Open in 2024.<ref>{{Cite web |last=Mesic |first=Dzevad |date=October 12, 2023 |title=Australian Open boss gives clear update on Naomi Osaka's 2024 participation |url=https://www.tennisworldusa.org/tennis/news/WTA_Tennis/138654/australian-open-boss-gives-clear-update-on-naomi-osaka-s-2024-participation/ |access-date=November 7, 2023 |website=Tennis World USA |language=en}}</ref><ref>{{Cite web |last=Pratt |first=James |date=October 11, 2023 |title=Rafael Nadal and Naomi Osaka to make grand slam tennis returns at 2024 Australian Open |url=https://olympics.com/en/news/rafa-nadal-naomi-osaka-grand-slam-tennis-returns-2024-australian-open |url-status=live |archive-url=https://web.archive.org/web/20231107115006/https://olympics.com/en/news/rafa-nadal-naomi-osaka-grand-slam-tennis-returns-2024-australian-open |archive-date=November 7, 2023 |access-date=November 7, 2023 |website=Olympics}}</ref> She later announced her return at the [[2024 Brisbane International]].<ref>{{cite web | url=https://www.wtatennis.com/news/3775899/naomi-osaka-to-begin-2024-comeback-at-brisbane-international | title=Naomi Osaka to begin 2024 comeback at Brisbane International }}</ref>

===2024: Two quarterfinals, French Open Świątek match===
Osaka made her return to professional tennis as a wildcard at Brisbane.<ref>{{cite web | url=https://www.brisbaneinternational.com.au/2023/12/wildcards-confirmed-for-brisbane-international-2024/ | title=Wildcards confirmed for Brisbane International 2024 | date=December 27, 2023 }}</ref> Playing her first professional match since [[2022 Toray Pan Pacific Open|September 2022]], she defeated [[Tamara Korpatsch]] in the first round in straight sets, which included a 20-point first set tiebreak, before losing to defending champion Karolína Plíšková in the second round in a very tight three-set match.<ref>{{cite web | url=https://www.cbsnews.com/news/naomi-osaka-wins-at-brisbane-international-australia-open-maternity-leave/ | title=Naomi Osaka wins first elite tennis match in return from maternity leave – CBS News | website=[[CBS News]] | date=January 2024 }}</ref><ref>{{cite web | url=https://www.nzherald.co.nz/sport/naomi-osaka-beaten-by-karolina-pliskova-in-second-round-of-brisbane-international-tennis-tournament/RZEFSEBNFZHZNGQY54JAEVUILY/ | title=Osaka exits early in tennis return | date=February 4, 2024 }}</ref><ref>{{cite web | url=https://www.wtatennis.com/tournament/800/brisbane/2024/scores/LS021 | title=Osaka vs. Pliskova &#124; Round of 32 Brisbane International presented by Evie 2024 &#124; WTA Official | date=January 3, 2024 }}</ref> In the [[2024 Australian Open – Women's singles|Australian Open]], Osaka faced Caroline Garcia in the first round, where she lost in straight sets.<ref>{{Cite news |last=Brewin |first=John |date=January 15, 2024 |title=Murray crashes out, Garcia knocks out Osaka, Auger-Aliassime sinks Thiem at Australian Open – as it happened |url=https://www.theguardian.com/sport/live/2024/jan/15/murray-etcheverry-jabeur-v-starodubtseva-de-minaur-raonic-garcia-v-osaka-and-more-australian-open-live |access-date=January 15, 2024 |work=the Guardian |language=en-GB |issn=0261-3077}}</ref> In the [[2024 Qatar TotalEnergies Open|Qatar Ladies Open]], Osaka reached quarterfinals where she again lost to Karolína Plíšková.<ref>{{cite web| title=Swiatek eases into Doha semifinals; Pliskova tops Osaka in two tiebreaks | url=https://www.wtatennis.com/news/3896661/swiatek-eases-into-doha-semifinals-pliskova-tops-osaka-in-two-tiebreaks | work=WTA Tennis | date = February 15, 2024 | accessdate = February 16, 2024}}</ref> Osaka returned to [[2024 BNP Paribas Open – Women's singles|Indian Wells]], securing straight set victories over [[Sara Errani]] and [[Liudmila Samsonova]]. She fell to the 24th seed [[Elise Mertens]] in the 3rd round. In [[2024 Miami Open – Women's singles|Miami]], Osaka took out Italian player [[Elisabetta Cocciaretto]] and Ukrainian Elina Svitolina in straight sets before falling to Frenchwoman Carolina Garcia in their third face-off of the year.

Osaka started her clay court season in [[2024 Open de Rouen|Rouen]], losing to clay court specialist and former French Open semifinalist, [[Martina Trevisan]] in straight sets.<ref>{{Cite web |last=Wright |first=Andrew |date=April 17, 2024 |title=Naomi Osaka Refuses to Make Excuses for Defear in Stuttgart to Martina Trevisan – 'I Have to Do Better' |url=https://www.eurosport.com/tennis/wta-stuttgart/2024/naomi-osaka-refuses-to-make-excuses-for-defeat-in-stuttgart-to-martina-trevisan-i-have-to-do-better_sto10106201/story.shtml |url-status=live |archive-url=https://web.archive.org/web/20240418062735/https://www.eurosport.com/tennis/wta-stuttgart/2024/naomi-osaka-refuses-to-make-excuses-for-defeat-in-stuttgart-to-martina-trevisan-i-have-to-do-better_sto10106201/story.shtml |archive-date=April 18, 2024 |access-date=June 2, 2024 |website=Eurosport}}</ref> She returned to [[2024 Mutua Madrid Open – Women's singles|Madrid]] with a comprehensive victory over [[Greet Minnen]].<ref>{{Cite web |last=Walker-Roberts |first=James |date=April 24, 2024 |title=Naomi Osaka 'Taking a Lot of Inspiration' from Clay Experts as She Seeks First Title on Surface |url=https://www.eurosport.com/tennis/wta-madrid/2024/naomi-osaka-taking-a-lot-of-inspiration-from-clay-experts-as-she-seeks-first-title-on-surface_sto10115618/story.shtml |url-status=live |archive-url=https://web.archive.org/web/20240425004900/https://www.eurosport.com/tennis/wta-madrid/2024/naomi-osaka-taking-a-lot-of-inspiration-from-clay-experts-as-she-seeks-first-title-on-surface_sto10115618/story.shtml |archive-date=April 25, 2024 |access-date=June 2, 2024 |website=Eurosport}}</ref> In a tough three-setter, Osaka lost to Samsonova in the second round.<ref>{{Cite web |last=Mustapha |first=Ibrahim |date=April 25, 2024 |title=Naomi Osaka Beaten by Impressive Liudmila Samsonova to Exit Madrid Open in the Second Round |url=https://www.eurosport.com/tennis/wta-madrid/2024/naomi-osaka-beaten-by-impressive-liudmila-samsonova-to-exit-madrid-open-in-the-second-round_sto20003220/story.shtml |url-status=live |archive-url=https://web.archive.org/web/20240425182754/https://www.eurosport.com/tennis/wta-madrid/2024/naomi-osaka-beaten-by-impressive-liudmila-samsonova-to-exit-madrid-open-in-the-second-round_sto20003220/story.shtml |archive-date=April 25, 2024 |access-date=June 2, 2024 |website=Eurosport}}</ref> She reached the fourth round in [[2024 Italian Open – Women's singles|Rome]], defeating notably seeded [[Daria Kasatkina]] and [[Marta Kostyuk]] in straight sets,<ref>{{cite web|url=https://www.wtatennis.com/news/4006176/osaka-returning-to-form-on-clay-you-d-better-believe-it|title=Osaka returning to form ... on clay? You'd better believe it}}</ref> before falling to Zheng Qinwen.<ref>{{cite web|url=https://www.wtatennis.com/news/4009657/a-humble-approach-for-zheng-pivotal-in-her-win-against-osaka-in-rome|title=A humble approach for Zheng pivotal in her win against Osaka in Rome}}</ref>

At the [[2024 French Open – Women's singles|2024 French Open]], Osaka lost an unexpectedly close second-round match to the three-time winner and world No. 1 Iga Świątek where she had set point the first set and one match point.<ref>{{cite news|url=https://www.theguardian.com/sport/article/2024/may/29/iga-swiatek-beats-naomi-osaka-three-set-french-open-second-round-tennis|title=Iga Swiatek digs deep to fend off Naomi Osaka in three-set French Open classic|work=The Guardian|date=May 29, 2024 |accessdate=July 16, 2024 |last1=Carayol |first1=Tumaini }}</ref>

Osaka then returned to grass courts for the first time since 2019 in 's-Hertogenbosch, Netherlands. She made a winning return and beat fourth-seeded [[Elise Mertens]] in the first round,<ref>{{cite web|url=https://www.wtatennis.com/news/4036489/osaka-beats-mertens-to-win-first-grass-court-match-in-five-years|title=Osaka beats Mertens to win first grass-court match in five years|publisher=WTA|accessdate=July 16, 2024}}</ref> eventually making it to the quarterfinals where she was defeated by Bianca Andreescu.<ref>{{cite web|url=https://www.tennismajors.com/wta-tour-news/s-hertogenbosch-libema-open-wta-250/s-hertogenbosch-open-andreescu-books-spot-in-semi-finals-767772.html|title=Andreescu wins the battle against Osaka to reach 's-Hertogenbosch semi-finals|date=June 14, 2024 |publisher=Tennis Majors|accessdate=July 16, 2024}}</ref> At the [[2024 Wimbledon Championships – Women's singles|2024 Wimbledon Championships]], Osaka got through to the second round before losing to [[Emma Navarro]].<ref>{{Cite web |last1=Blinn |last2=Michael |date=July 3, 2024 |title=Naomi Osaka crashes out of Wimbledon after 'doubts started trickling in' |url=https://nypost.com/2024/07/03/sports/naomi-osaka-crashes-out-of-wimbledon-after-doubts-started-trickling-in/ |access-date=July 8, 2024}}</ref><ref>{{Cite web |title=Osaka switches focus to Paris 2024 Olympics after early Wimbledon exit|url=https://www.aljazeera.com/sports/2024/7/4/osaka-switches-focus-to-paris-2024-olympics-after-early-wimbledon-exit |access-date=July 8, 2024 |website=Al Jazeera |language=}}</ref>

At the [[2024 National Bank Open|Canadian Open]], Osaka defeated [[Ons Jabeur]] in the first round,<ref>{{cite news|url=https://www.tennis.com/news/articles/naomi-osaka-makes-sailor-moon-magic-to-stun-ons-jabeur-in-toronto-kick-off-us-open-swing|title=Naomi Osaka makes Sailor Moon magic to stun Ons Jabeur in Toronto, kick off US Open swing|first=David|last=Kane|publisher=Tennis.com|date=August 7, 2024|accessdate=August 9, 2024}}</ref> but was eliminated in the second round after losing to Elise Mertens.<ref>{{cite news|url=https://www.wtatennis.com/news/4078822/sabalenka-wins-toronto-opener-mertens-ousts-osaka|title=Sabalenka wins Toronto opener; Mertens ousts Osaka|first=Courtney|last=Nguyen|publisher=[[Women's Tennis Association|WTA]]|date=August 8, 2024|accessdate=August 9, 2024}}</ref>

She reached the second round at the [[2024 US Open (tennis)|US Open]] with a win over 10th seed [[Jelena Ostapenko]],<ref>{{cite web|url=https://www.bbc.com/sport/tennis/articles/clywngk51w5o|title=Osaka wins on emotional US Open return|date=August 27, 2024 |publisher=BBC Sport|accessdate=3 November 2024}}</ref> before losing to [[Karolína Muchová]].<ref>{{cite web|url=https://www.bbc.co.uk/sport/tennis/articles/cp3d24nze2wo|title='My heart dies every time I lose' - Osaka after US Open exit|date=August 30, 2024 |publisher=BBC Sport|accessdate=3 November 2024}}</ref>

Osaka played her next tournament at the [[2024 China Open (tennis)|China Open]], making it through to the fourth round where she retired due to a back injury at the start of the third set against [[Coco Gauff]].<ref>{{cite web|url=https://www.independent.co.uk/sport/tennis/naomi-osaka-coco-gauff-china-open-retire-b2622092.html|title=Coco Gauff helps carry Naomi Osaka's bags off court after shock China Open retirement|work=The Independent|accessdate=3 November 2024}}</ref> On 21 October, she announced she was ending her season early because of her back injury.<ref>{{cite web|url=https://www.wtatennis.com/news/4153153/back-injury-forces-naomi-osaka-to-wrap-up-2024-season-early|title=Back injury forces Naomi Osaka to wrap up 2024 season early|publisher=Women's Tennis Association|accessdate=3 November 2024}}</ref>

=== 2025: Auckland Open final ===
Osaka started her 2025 season at the [[2025 ASB Classic – Women's singles|Auckland Open]], where she reached the final but retired due to an abdominal injury after winning the first set against [[Clara Tauson]].<ref>{{cite web|url=https://www.wtatennis.com/news/4194257/tauson-claims-auckland-title-after-injured-osaka-retires-from-final|title=Tauson claims Auckland title after injured Osaka retires from final|publisher=Women's Tennis Association |accessdate=5 January 2025}}</ref>


==National representation==
==National representation==
===Fed Cup===
===Fed Cup===
Osaka made her [[Fed Cup]] debut for [[Japan Fed Cup team|Japan]] in 2017, while the team was competing in the [[2017 Fed Cup Asia/Oceania Zone|Asia/Oceania Zone Group I]]. Japan won all nine of their rubbers to advance out of their round robin pool. Although Osaka won her singles match in the [[2017 Fed Cup Asia/Oceania Zone Group I – Play-offs|play-off]] against [[Kazakhstan Fed Cup team|Kazakhstan]], the team lost their other two matches and was not able to advance.<ref>{{cite web |title=Kazakhstan seals World Group II play-offs berth |url=https://www.fedcup.com/en/news/253484.aspx |website=Fed Cup |accessdate=November 3, 2018}}</ref> The following year with Osaka absent, Japan was able to defeat Kazakhstan in the [[2018 Fed Cup Asia/Oceania Zone|same group]] to advance to the [[2018 Fed Cup World Group II Play-offs|2018 World Group II Play-offs]].<ref>{{cite web |title=Japan books place in World Group II play-offs |url=https://www.fedcup.com/en/news/280901.aspx |website=Fed Cup |accessdate=November 3, 2018}}</ref> In this stage, they hosted [[Great Britain Fed Cup team|Great Britain]] in a usual five rubber tie. At this point, Osaka returned to the team and won her opening match against [[Heather Watson]].<ref>{{cite web |title=Japan and Great Britain level in Miki |url=https://www.fedcup.com/en/news/283696.aspx |website=Fed Cup |accessdate=November 3, 2018}}</ref> After she lost her next rubber to [[Johanna Konta]], [[Kurumi Nara]] was also able to defeat Watson to set up a decisive doubles match. Japan won that final rubber to earn promotion to World Group II in 2019.<ref>{{cite web |title=Japan books its place among the world's elite for 2019 |url=https://www.fedcup.com/en/news/283697.aspx |website=Fed Cup |accessdate=November 3, 2018}}</ref>
Osaka made her [[Fed Cup]] debut for [[Japan Fed Cup team|Japan]] in 2017, while the team was competing in the [[2017 Fed Cup Asia/Oceania Zone|Asia/Oceania Zone Group I]]. Japan won all nine of their rubbers to advance out of their round-robin pool. Although Osaka won her singles match in the [[2017 Fed Cup Asia/Oceania Zone Group I – Play-offs|play-off]] against [[Kazakhstan Fed Cup team|Kazakhstan]], the team lost their other two matches and was not able to advance.<ref>{{cite web |title=Kazakhstan seals World Group II play-offs berth |url=https://www.fedcup.com/en/news/253484.aspx |website=Fed Cup |access-date=November 3, 2018 |archive-date=November 16, 2018 |archive-url=https://web.archive.org/web/20181116202541/https://www.fedcup.com/en/news/253484.aspx |url-status=dead }}</ref> The following year with Osaka absent, Japan was able to defeat Kazakhstan in the [[2018 Fed Cup Asia/Oceania Zone|same group]] to advance to the [[2018 Fed Cup World Group II Play-offs|2018 World Group II Play-offs]].<ref>{{cite web |title=Japan books place in World Group II play-offs |url=https://www.fedcup.com/en/news/280901.aspx |website=Fed Cup |access-date=November 3, 2018 |archive-date=November 16, 2018 |archive-url=https://web.archive.org/web/20181116210034/https://www.fedcup.com/en/news/280901.aspx |url-status=dead }}</ref> In this stage, they hosted [[Great Britain Fed Cup team|Great Britain]] in a usual five rubber tie. At this point, Osaka returned to the team and won her opening match against [[Heather Watson]].<ref>{{cite web |title=Japan and Great Britain level in Miki |url=https://www.fedcup.com/en/news/283696.aspx |website=Fed Cup |access-date=November 3, 2018 |archive-date=November 16, 2018 |archive-url=https://web.archive.org/web/20181116212018/https://www.fedcup.com/en/news/283696.aspx |url-status=dead }}</ref> After she lost her next rubber to [[Johanna Konta]], [[Kurumi Nara]] was also able to defeat Watson to set up a decisive doubles match. Japan won that final rubber to earn promotion to World Group II in 2019.<ref>{{cite web |title=Japan books its place among the world's elite for 2019 |url=https://www.fedcup.com/en/news/283697.aspx |website=Fed Cup |access-date=November 3, 2018 |archive-date=May 3, 2019 |archive-url=https://web.archive.org/web/20190503151816/https://www.fedcup.com/en/news/283697.aspx |url-status=dead }}</ref>


===Hopman Cup===
===Hopman Cup===
Osaka made her [[Hopman Cup]] debut in [[2018 Hopman Cup|2018]] with [[Yūichi Sugita]]. Japan was making their first appearance at the exhibition tournament since [[2001 Hopman Cup|2001]].<ref>{{cite web |title=Hopman Cup Group B Preview: Japan vs Switzerland |url=https://www.vavel.com/en-us/tennis-usa/2017/12/29/862660-hopman-cup-group-b-preview-japan-vs-switzerland.html |website=Vavel |accessdate=November 3, 2018| first1 = Don | last1 = Han}}</ref> They were grouped with Switzerland, the United States, and Russia, and lost all three of their ties. Osaka's only match win came in singles against Russian [[Anastasia Pavlyuchenkova]]. She also had a big highlight in the mixed doubles match against Switzerland when she served an [[Ace (tennis)|ace]] past [[Roger Federer]].<ref>{{cite news |title=Swiss tennis champion Roger Federer aced by Japan's Naomi Osaka in Hopman Cup |url=https://wwos.nine.com.au/tennis/swiss-tennis-champion-roger-federer-aced-by-japans-naomi-osaka-in-hopman-cup/9fdf69f4-8d24-4361-831b-fea6501fe9d9 |accessdate=October 4, 2018 |work=[[Nine.com.au]] |date=December 31, 2017}}</ref>
Osaka made her [[Hopman Cup]] debut in 2018 with [[Yūichi Sugita]]. Japan was making their first appearance at the exhibition tournament since 2001.<ref>{{cite web |title=Hopman Cup Group B Preview: Japan vs Switzerland |url=https://www.vavel.com/en-us/tennis-usa/2017/12/29/862660-hopman-cup-group-b-preview-japan-vs-switzerland.html |website=Vavel |access-date=November 3, 2018| first1 = Don | last1 = Han|date=December 29, 2017 }}</ref> They were grouped with Switzerland, the United States, and Russia, and lost all three of their ties. Osaka's only match win came in singles against Russian Anastasia Pavlyuchenkova. She also had a big highlight in the mixed doubles match against Switzerland when she served an [[Ace (tennis)|ace]] past [[Roger Federer]].<ref>{{cite news |title=Swiss tennis champion Roger Federer aced by Japan's Naomi Osaka in Hopman Cup |url=https://wwos.nine.com.au/tennis/swiss-tennis-champion-roger-federer-aced-by-japans-naomi-osaka-in-hopman-cup/9fdf69f4-8d24-4361-831b-fea6501fe9d9 |access-date=October 4, 2018 |work=[[Nine.com.au]] |date=December 31, 2017}}</ref>

===Olympics===
Osaka lit the Olympic cauldron during the [[2020 Summer Olympics opening ceremony|opening ceremony]].<ref>{{cite web|date=July 23, 2021|title=Tokyo 2020: Osaka becomes the first tennis player to light the Olympic Cauldron|url=https://www.wtatennis.com/news/2196370/tokyo-2020-osaka-becomes-the-first-tennis-player-to-light-the-olympic-cauldron|work=WTA Tennis|access-date=July 28, 2021}}</ref> Coming into Tokyo Olympics, Osaka was ranked 2nd in the world. She lost in the 3rd round of the games to eventual finalist and silver medalist [[Markéta Vondroušová]] after two straight set victories.<ref>{{cite news|last1=Futterman|first1=Matthew|date=July 27, 2021|title=Naomi Osaka's Loss Gives Tokyo Its Latest Olympic Setback|newspaper=The New York Times|url=https://www.nytimes.com/2021/07/27/sports/tennis/naomi-osaka-upset.html}}</ref>


==Playing style==
==Playing style==
[[File:Naomi Osaka (42699829781) (cropped).jpg|thumb|Osaka serving]]
[[File:Naomi Osaka (42699829781) (cropped).jpg|alt=Osaka finishing her service motion|thumb|left|Osaka serving]]
Osaka is an aggressive [[Tennis strategy#Baseliner strategies|baseline player]].<ref name="bein">{{cite web |title=All You Need To Know About US Open Star Naomi Osaka |url=http://www.beinsports.com/us/wta-tour/news/all-you-need-to-know-about-us-open-star-nao-2/972496 |website=BeiN Sports |accessdate=November 3, 2018}}</ref> She has excellent raw power, especially on her [[forehand]] and her [[Serve (tennis)|serve]]. Osaka could hit {{Convert|100|mph|km/h|sigfig=2}} forehands at the age of sixteen, and her serve has been clocked at up to {{Convert|125|mph|km/h|sigfig=2}}, making her one of the ten fastest servers on record in WTA history.<ref name=start-taylor/><ref name="fastest-serve">{{cite news|url=http://ftw.usatoday.com/2017/08/naomi-osaka-us-open-kerber-upset-japanese-haitian-serena-williams|title=Who is Naomi Osaka? 19-year-old stole U.S. Open spotlight with Round 1 upset|last1=Joseph|first1=Adi|date=August 29, 2017|work=USA Today|accessdate=October 16, 2017}}</ref> While she can use her power to hit high numbers of winners, Osaka's key to success is to be able to win long [[rally (tennis)|rallies]].<ref name=start-taylor/> One of the first notable instances in which that strategy proved successful was when Osaka made her first career WTA final at the [[2016 Toray Pan Pacific Open|2016 Pan Pacific Open]].<ref>{{cite web |title=SAP Coaches View: Osaka Outlasts In Tokyo |url=http://www.wtatennis.com/content/sap-coaches-view-osaka-outlasts-tokyo-0 |website=WTA Tennis |accessdate=November 3, 2018}}</ref>
Osaka is an aggressive [[Tennis strategy#Baseliner strategies|baseline player]].<ref name="bein">{{cite web |title=All You Need To Know About US Open Star Naomi Osaka |url=http://www.beinsports.com/us/wta-tour/news/all-you-need-to-know-about-us-open-star-nao-2/972496 |website=BeiN Sports |access-date=November 3, 2018}}</ref> She has excellent raw power, especially on her [[forehand]] and her [[Serve (tennis)|serve]]. Osaka could hit {{Convert|160|km/h|mph|sigfig=1|sp=us}} forehands at the age of sixteen, and her serve has been clocked at up to {{Convert|200|km/h|mph|sigfig=3|sp=us}}, making her one of the ten fastest servers on record in WTA history.<ref name=start-taylor/><ref name="fastest-serve">{{cite news|url=http://ftw.usatoday.com/2017/08/naomi-osaka-us-open-kerber-upset-japanese-haitian-serena-williams|title=Who is Naomi Osaka? 19-year-old stole U.S. Open spotlight with Round 1 upset|last1=Joseph|first1=Adi|date=August 29, 2017|work=USA Today|access-date=October 16, 2017}}</ref> While she can use her power to hit high numbers of winners, Osaka's key to success is to be able to win long [[rally (tennis)|rallies]].<ref name=start-taylor/> One of the first notable instances in which that strategy proved successful was when Osaka made her first career WTA final at the [[2016 Toray Pan Pacific Open|2016 Pan Pacific Open]].<ref>{{cite web |title=SAP Coaches View: Osaka Outlasts In Tokyo |url=http://www.wtatennis.com/content/sap-coaches-view-osaka-outlasts-tokyo-0 |website=WTA Tennis |access-date=November 3, 2018}}</ref>


Osaka credited improving her mental approach and cutting down on unforced errors for her breakthrough season in 2018. At the Wuhan Open towards the end of the year, she noted that, "I think my biggest improvement is mental. My game is more consistent, there are not so many unforced errors. I'm not sure how many I hit today, but sometimes last year I was hitting a lot!"<ref name="mental-quote">{{cite web |title='My best performance yet' – Osaka steams past Goerges in Beijing |url=http://www.wtatennis.com/news/my-best-performance-yet-osaka-steams-past-goerges-beijing |website=WTA Tennis |accessdate=November 3, 2018}}</ref> She attributed some of these changes to her coach Sascha Bajin, saying, "Since I was working with [Bajin] — and I tend to be a bit negative on myself — I feel like I've gotten a little bit more optimistic ... I fight myself a lot, so he's sort of been, like, the peacemaker." Bajin also agreed with Osaka on the impact of having a patient, positive approach in each match.<ref name=bajin-peace/>
Osaka credited improving her mental approach and cutting down on unforced errors for her breakthrough season in 2018. At the Wuhan Open towards the end of the year, she noted, "I think my biggest improvement is mental. My game is more consistent, there are not so many unforced errors. I'm not sure how many I hit today, but sometimes last year I was hitting a lot!"<ref name="mental-quote">{{cite web |title='My best performance yet' – Osaka steams past Goerges in Beijing |url=http://www.wtatennis.com/news/my-best-performance-yet-osaka-steams-past-goerges-beijing |website=WTA Tennis |access-date=November 3, 2018}}</ref> She attributed some of these changes to her coach Sascha Bajin, saying, "Since I was working with [Bajin] — and I tend to be a bit negative on myself — I feel like I've gotten a little bit more optimistic ... I fight myself a lot, so he's sort of been, like, the peacemaker." Bajin also agreed with Osaka on the impact of having a patient, positive approach in each match.<ref name=bajin-peace/>


==Coaches==
==Coaches==
Osaka was coached by her father Leonard François from the age of three.<ref name=ny-times/> Patrick Tauma was one of her first coaches after she began playing on the ITF Women's Circuit. He was her coach in 2013 when she reached her first ITF final.<ref name=tauma/><ref>{{cite web |title=Is Naomi Osaka a quiet warrior? |url=http://www.tennisworldusa.org/tennis/news/Tennis_Stories/31573/is-naomi-osaka-a-quiet-warrior/ |website=Tennis World USA |accessdate=November 3, 2018 | archivedate =March 17, 2018 | archiveurl= https://web.archive.org/web/20180317233133/http://www.tennisworldusa.org/tennis/news/Tennis_Stories/31573/is-naomi-osaka-a-quiet-warrior/| first1 = Gale | last1 = Moorman}}</ref> In 2014, she spent seven months training at an academy run by [[Harold Solomon]], a former top five player and French Open finalist who has coached many top women's tennis players including [[Jennifer Capriati]] and [[Mary Joe Fernández]].<ref name="solomon-profile">{{cite web |title=TN Q & A: Harold Solomon |url=http://www.tennisnow.com/News/Featured-News/The-Tennis-Now-Q-and-A-with-Harold-Solomon.aspx |website=Tennis Now |accessdate=November 3, 2018| first1= Chris | last1 = Oddo}}</ref><ref name=solomon/> Under Solomon, Osaka defeated Sam Stosur for her first WTA match win.<ref name=solomon/> Following her loss at the 2016 US Open where she could not convert a 5–1 lead in the third set, the [[Japan Tennis Association]] helped arrange for David Taylor to be her new coach.<ref name="start-taylor">{{cite web |last1=Thomas |first1=Louisa |title=The Thousand Autumns of Naomi Osaka |url=https://racquetmag.com/2018/03/19/the-thousand-autumns-of-naomi-osaka/ |website=Racquet Magazine |accessdate=November 3, 2018}}</ref>
Osaka was coached by her father Leonard François from the age of three.<ref name=ny-times/> Patrick Tauma was one of her first coaches after she began playing on the ITF Women's Circuit. He was her coach in 2013 when she reached her first ITF final.<ref name=tauma/><ref>{{cite web |title=Is Naomi Osaka a quiet warrior? |url=http://www.tennisworldusa.org/tennis/news/Tennis_Stories/31573/is-naomi-osaka-a-quiet-warrior/ |website=Tennis World USA |access-date=November 3, 2018 | archive-date =March 17, 2018 | archive-url= https://web.archive.org/web/20180317233133/http://www.tennisworldusa.org/tennis/news/Tennis_Stories/31573/is-naomi-osaka-a-quiet-warrior/| first1 = Gale | last1 = Moorman}}</ref> In 2014, she spent seven months training at an academy run by [[Harold Solomon]], a former top five player and French Open finalist who has coached many top women's tennis players including [[Jennifer Capriati]] and [[Mary Joe Fernández]].<ref name="solomon-profile">{{cite web |title=TN Q & A: Harold Solomon |url=http://www.tennisnow.com/News/Featured-News/The-Tennis-Now-Q-and-A-with-Harold-Solomon.aspx |website=Tennis Now |access-date=November 3, 2018| first1= Chris | last1 = Oddo}}</ref><ref name=solomon/> Under Solomon, Osaka defeated [[Sam Stosur]] for her first WTA match win.<ref name=solomon/> Following her loss at the 2016 US Open where she could not convert a 5–1 lead in the third set, the [[Japan Tennis Association]] helped arrange for David Taylor to be her new coach.<ref name="start-taylor">{{cite web |last1=Thomas |first1=Louisa |title=The Thousand Autumns of Naomi Osaka |url=https://racquetmag.com/2018/03/19/the-thousand-autumns-of-naomi-osaka/ |website=Racquet Magazine |access-date=November 3, 2018 |archive-url=https://web.archive.org/web/20180624215508/https://racquetmag.com/2018/03/19/the-thousand-autumns-of-naomi-osaka/ |archive-date=June 24, 2018 |url-status=dead }}</ref>


After a lackluster 2017 season, she switched coaches to [[Sascha Bajin]], who had previously served as a hitting partner to top players such as Serena Williams, [[Victoria Azarenka]], and [[Caroline Wozniacki]].<ref name="bajin-info">{{cite web |title=Sascha Bajin in it for the long haul with Osaka: 'I've paid my dues' |url=http://www.wtatennis.com/news/sascha-bajin-it-long-haul-osaka-ive-paid-my-dues |website=WTA Tennis |accessdate=November 3, 2018| first1 = Courtney | last1 = Nguyen}}</ref><ref name="bajin-peace">{{cite web |title=Naomi Osaka's coach Sascha Bajin juggles coach, peacemaker roles |url=https://www.usopen.org/en_US/news/articles/2018-09-06/naomi_osakas_coach_sascha_bajin_juggles_coach_peacemaker_roles.html?chip=2 |website=US Open |accessdate=November 3, 2018| first1 = Richard | last1 = Osborn}}</ref> With Bajin as her coach, Osaka won her first Premier Mandatory title and two Grand Slam singles titles.<ref name=indian-wells-title/><ref name=us-open-final/> She also rose to No. 1 in the world after having never previously been ranked above No. 40.<ref name=wta-rankings/> Bajin was named the inaugural [[WTA Awards#WTA Coach of the Year Award|WTA Coach of the Year]] in 2018.<ref>{{cite web |title=Osaka's coach, Bajin, wins 1st WTA Coach of the Year award |url=https://www.usatoday.com/story/sports/tennis/2018/12/10/osakas-coach-bajin-wins-1st-wta-coach-of-the-year-award/38711751/ |website=USA Today | agency = Associated Press |accessdate=March 10, 2019}}</ref> Shortly after her 2019 Australian Open title, Osaka surprisingly split with Bajin, saying, she "wouldn't put success over [her] happiness."<ref name=bajin-split>{{cite web |title=Split with Bajin not over money: Osaka |url=https://www.reuters.com/article/us-tennis-women-osaka/split-with-bajin-not-over-money-osaka-idUSKCN1Q701Z?feedType=RSS&feedName=sportsNews |website=Reuters |accessdate=10 March 2019}}</ref><ref>{{cite web |title=Osaka's split with coach shocks tennis world |url=https://www.japantimes.co.jp/sports/2019/02/13/more-sports/tennis/osakas-split-coach-shocks-tennis-world/#.XIWisVNKjaY |website=Japan Times |accessdate=March 10, 2019}}</ref> She hired [[Jermaine Jenkins]] to be her new coach the following month. Jenkins had previously worked as a hitting partner for [[Venus Williams]].<ref>{{cite web |url=https://www.wtatennis.com/news/naomi-osaka-hires-jermaine-jenkins-new-coach|title=Naomi Osaka hires Jermaine Jenkins as new coach|last=Nguyen|first=Courtney|date=28 February 2019|website=wtatennis.com|access-date=March 7, 2019}}</ref> Osaka recently announced that she will no longer be coached by Jenkins. She is presently being coached by her father, Leonard Francois.<ref>{{cite web |title=Tennis: Naomi Osaka announces split with coach Jermaine Jenkins |url=https://english.kyodonews.net/news/2019/09/16c0b9a2370e-tennis-naomi-osaka-announces-split-with-coach-jermaine-jenkins.html |website=Kyodo News |accessdate=September 22, 2019}}</ref>
After the 2017 season, Osaka switched coaches to [[Sascha Bajin]], who had previously served as a hitting partner to top players such as Serena Williams, [[Victoria Azarenka]], and [[Caroline Wozniacki]].<ref name="bajin-info">{{cite web |title=Sascha Bajin in it for the long haul with Osaka: 'I've paid my dues' |url=http://www.wtatennis.com/news/sascha-bajin-it-long-haul-osaka-ive-paid-my-dues |website=WTA Tennis |access-date=November 3, 2018| first1 = Courtney | last1 = Nguyen}}</ref><ref name="bajin-peace">{{cite web |title=Naomi Osaka's coach Sascha Bajin juggles coach, peacemaker roles |url=https://www.usopen.org/en_US/news/articles/2018-09-06/naomi_osakas_coach_sascha_bajin_juggles_coach_peacemaker_roles.html?chip=2 |website=US Open |access-date=November 3, 2018| first1 = Richard | last1 = Osborn}}</ref> With Bajin as her coach, Osaka won her first Premier Mandatory title and two Grand Slam singles titles.<ref name=indian-wells-title/><ref name=us-open-final/> She also rose to No. 1 in the world after having never previously been ranked above No. 40.<ref name=wta-rankings/> Bajin was named the inaugural [[WTA Awards#WTA Coach of the Year Award|WTA Coach of the Year]] in 2018.<ref>{{cite web |title=Osaka's coach, Bajin, wins 1st WTA Coach of the Year award |url=https://www.usatoday.com/story/sports/tennis/2018/12/10/osakas-coach-bajin-wins-1st-wta-coach-of-the-year-award/38711751/ |website=USA Today | agency = Associated Press |access-date=March 10, 2019}}</ref> Shortly after her 2019 Australian Open title, Osaka surprisingly split with Bajin, saying, she "wouldn't put success over [her] happiness."<ref name=bajin-split>{{cite news |title=Split with Bajin not over money: Osaka |url=https://www.reuters.com/article/us-tennis-women-osaka/split-with-bajin-not-over-money-osaka-idUSKCN1Q701Z |website=Reuters |date = February 18, 2019|access-date=March 10, 2019}}</ref><ref>{{cite web |title=Osaka's split with coach shocks tennis world |url=https://www.japantimes.co.jp/sports/2019/02/13/more-sports/tennis/osakas-split-coach-shocks-tennis-world/ |website=Japan Times |date=February 13, 2019 |access-date=March 10, 2019 |archive-date=February 14, 2019 |archive-url=https://web.archive.org/web/20190214123503/https://www.japantimes.co.jp/sports/2019/02/13/more-sports/tennis/osakas-split-coach-shocks-tennis-world/ |url-status=dead }}</ref> She hired [[Jermaine Jenkins]] to be her new coach from March until October. Jenkins had previously worked as a hitting partner for [[Venus Williams]].<ref>{{cite web |url=https://www.wtatennis.com/news/naomi-osaka-hires-jermaine-jenkins-new-coach|title=Naomi Osaka hires Jermaine Jenkins as new coach|last=Nguyen|first=Courtney|date=February 28, 2019|website=wtatennis.com|access-date=March 7, 2019}}</ref> Osaka temporarily replaced him with her father in September. She won her first two tournaments with him back as her coach.<ref>{{cite web |title=Tennis: Naomi Osaka announces split with coach Jermaine Jenkins |url=https://english.kyodonews.net/news/2019/09/16c0b9a2370e-tennis-naomi-osaka-announces-split-with-coach-jermaine-jenkins.html |website=Kyodo News |access-date=September 22, 2019}}</ref><ref name="restart-francois">{{cite web |title=Naomi Osaka's Haitian father is coaching her once again |url=http://www.haitianinternet.com/articles/naomi-osaka-haitian-father-is-coaching-her-once-again.html |website=The Haitian Internet |access-date=November 24, 2019}}</ref> She subsequently hired [[Wim Fissette]] at the start of the 2020 season<ref>{{cite web |title=Osaka names Wim Fissette as new coach |url=https://www.wtatennis.com/news/1535478/osaka-names-wim-fissette-as-new-coach |website=WTA Tennis |access-date=December 15, 2019 | date=December 15, 2019}}</ref> but announced on September 13, 2024, the end of their coaching relationship.<ref>{{cite web|url=https://www.bbc.co.uk/sport/tennis/articles/cjd5kzy7x2mo|title=Osaka splits from coach Fissette|date=September 14, 2024 |publisher=BBC Sport|accessdate=September 14, 2024}}</ref>

In September 2024 Osaka added [[Patrick Mouratoglou]] as her coach.<ref>{{cite web|url=https://www.tennis.com/baseline/articles/naomi-osaka-arrives-in-beijing-with-new-coach-patrick-mouratoglou-in-tow|title=Naomi Osaka arrives in Beijing with new coach Patrick Mouratoglou in tow}}</ref>


==Endorsements==
==Endorsements==
Osaka is one of the most marketable athletes in the world. She earned an estimated $16&nbsp;million in endorsements alone in 2019, which placed her second among female athletes behind only Serena Williams who earned $25&nbsp;million.<ref name="forbes-list">{{cite web |title=The Highest-Paid Female Athletes 2019: Serena And Osaka Dominate |url=https://www.forbes.com/sites/kurtbadenhausen/2019/08/06/the-highest-paid-female-athletes-2019-serena-and-osaka-dominate/ |website=Forbes |access-date=August 30, 2019}}</ref> The following year, she became the highest-paid female athlete of all time, having earned $37.4&nbsp;million in total, including $34&nbsp;million in endorsements.<ref>{{cite web |url=https://www.forbes.com/sites/kurtbadenhausen/2020/05/22/naomi-osaka-is-the-highest-paid-female-athlete-ever-topping-serena-williams/#7915cf5e1fd3|title=Naomi Osaka Is The Highest-Paid Female Athlete Ever, Topping Serena Williams|last=Badenhausen|first=Kurt|date=May 22, 2020|website=Forbes|access-date=May 23, 2020}}</ref><ref>{{cite web |url=https://www3.nhk.or.jp/nhkworld/en/news/20200523_15/|title=Osaka Naomi highest-paid female athlete ever|date=May 23, 2020|website=NHK World-Japan|access-date=May 23, 2020}}</ref> Overall, she was the 29th highest-paid athlete in 2020 and the 8th highest-paid athlete in endorsements alone.<ref name="29-2020">{{cite web |title=#29 Naomi Osaka |url=https://www.forbes.com/profile/naomi-osaka/?list=athletes#177c3cc7384e |website=Forbes |access-date=September 11, 2020 |date = May 22, 2020}}</ref><ref>{{cite web |title=The World's Highest-Paid Athletes |url=https://www.forbes.com/athletes/list/ |website=Forbes |access-date=May 12, 2021 |archive-url=https://web.archive.org/web/20200818004031/https://www.forbes.com/athletes/list/ |archive-date=August 18, 2020}}</ref>
Osaka has been represented by the [[IMG (company)|IMG]] management company since 2016.<ref>{{cite web |title=Naomi Osaka signs with IMG |url=https://www.tennisworldusa.org/tennis/news/Tennis_Stories/36739/naomi-osaka-signs-with-img/ |website=Tennis World USA |accessdate=November 3, 2018|first1 = Luigi | last1= Gatto}}</ref> The Japanese sporting equipment manufacturer [[Yonex]] has supplied her with rackets since 2008.<ref name="nikkei">{{cite web |title=Naomi Osaka serves Japan brands a golden Olympic opportunity |url=https://asia.nikkei.com/Business/Business-Trends/Naomi-Osaka-serves-Japan-brands-a-golden-Olympic-opportunity |website=Nikkei |accessdate=November 3, 2018 | first1 = Akhide|last1 = Anzai}}</ref> She plays with the Yonex Ezone 98 racket, equipped with Polytour Pro 125 and Rexis 130 strings.<ref>{{cite web |title=Naomi Osaka (JPN) |url=http://www.yonex.com/players/featured-players/naomi-osaka/ |website=Yonex |accessdate=November 3, 2018}}</ref> [[Nike, Inc.|Nike]] has been her apparel sponsor since 2019.<ref>{{cite web |title=Naomi Osaka switches from Adidas to Nike! |url=https://www.tennisworldusa.org/tennis/news/Tennis_Stories/68923/naomi-osaka-switches-from-adidas-to-nike/ |website=Tennis World USA |first1=Philip| last1=Anderson |accessdate=6 April 2019}}</ref> She had previously been sponsored by [[Adidas]] for four years.<ref>{{cite web |title=Naomi Osaka close to signing historic deal with Adidas |url=https://nypost.com/2018/09/13/naomi-osaka-close-to-signing-historic-deal-with-adidas/ |website=New York Post |accessdate=November 3, 2018}}</ref>

[[Nike, Inc.|Nike]] has been Osaka's apparel sponsor since 2019,<ref>{{cite web |title=Naomi Osaka switches from Adidas to Nike! |url=https://www.tennisworldusa.org/tennis/news/Tennis_Stories/68923/naomi-osaka-switches-from-adidas-to-nike/ |website=Tennis World USA |first1=Philip| last1=Anderson |date=April 6, 2019 |access-date=April 6, 2019}}</ref> having replaced [[Adidas]] who had sponsored her for four years.<ref>{{cite web |title=Naomi Osaka close to signing historic deal with Adidas |url=https://nypost.com/2018/09/13/naomi-osaka-close-to-signing-historic-deal-with-adidas/ |website=New York Post |date=September 14, 2018 |access-date=November 3, 2018}}</ref> With Nike, Osaka has a clothing collection featuring her monogram logo that uses her initials and is inspired by the Japanese flag.<ref name="logo">{{cite web |last1=Harwood |first1=Erika |title=Nike Debuted Its New Naomi Osaka Logo & Apparel Collection |url=https://www.nylon.com/fashion/nike-debuted-new-naomi-osaka-logo-apparel-collection#:~:text=Naomi%20Osaka's%20New%20Nike%20Collection%20Pays%20Tribute%20To%20Her%20Multicultural%20Roots |website=Nylon |access-date=January 16, 2021 | date = November 10, 2020}}</ref><ref>{{cite magazine |last1=Zaldivar |first1=Gabe |title=Naomi Osaka's Nike Collection is More Than a Multicultural Marvel |url=https://www.si.com/enfuego/news/naomi-osakas-nike-collection-is-a-multicultural-marvel |magazine=Sports Illustrated |access-date=January 13, 2021 | date = November 13, 2020}}</ref> The Japanese sporting equipment manufacturer [[Yonex]] has supplied her with rackets since 2008.<ref name="nikkei">{{cite web |title=Naomi Osaka serves Japan brands a golden Olympic opportunity |url=https://asia.nikkei.com/Business/Business-Trends/Naomi-Osaka-serves-Japan-brands-a-golden-Olympic-opportunity |website=Nikkei |access-date=November 3, 2018 | first1 = Akhide|last1 = Anzai}}</ref> She plays with the Yonex Ezone 98 racket, equipped with Polytour Pro 125 and Rexis 130 strings.<ref>{{cite web |title=Naomi Osaka (JPN) |url=http://www.yonex.com/players/featured-players/naomi-osaka/ |website=Yonex |access-date=November 3, 2018 |archive-date=September 23, 2018 |archive-url=https://web.archive.org/web/20180923120718/http://www.yonex.com/players/featured-players/naomi-osaka |url-status=dead }}</ref> Osaka has been represented by the [[IMG (company)|IMG]] management company since 2016.<ref>{{cite web |title=Naomi Osaka signs with IMG |url=https://www.tennisworldusa.org/tennis/news/Tennis_Stories/36739/naomi-osaka-signs-with-img/ |website=Tennis World USA |access-date=November 3, 2018|first1 = Luigi | last1= Gatto|date=September 27, 2016 }}</ref> In 2022, Osaka left IMG, in order to set up her own sports management agency, Evolve, alongside her agent, Stuart Duguid.

Osaka is a brand ambassador for Japanese automobile manufacturer [[Nissan]] and Japanese electronics manufacturer [[Citizen Watch]].<ref name=nikkei/><ref>{{cite web |title=Citizen nominates tennis pro Naomi Osaka as new brand ambassador. |url=http://www.citizenwatch-global.com/news/2018/20180826/index.html |website=Citizen Watch |access-date=November 3, 2018}}</ref> She also endorses several other Japanese companies, including noodle maker [[Nissin Foods]], cosmetics producer [[Shiseido]], the broadcasting station [[Wowow]], and airline [[All Nippon Airways]] (ANA).<ref name="forbes">{{cite web |last1=Newcomb |first1=Tim |title=The Continued Rise Of Naomi Osaka And Her Business Star |url=https://www.forbes.com/sites/timnewcomb/2018/09/18/the-continued-rise-of-naomi-osaka-and-her-endorsements/#16873257670b |website=Forbes |access-date=November 3, 2018}}</ref><ref>{{cite web |title=Shiseido signs tennis star Osaka to help expand global appeal |url=http://www.thejakartapost.com/life/2018/11/20/shiseido-signs-tennis-star-osaka-to-help-expand-global-appeal.html |website=The Jakarta Post |first1 = Lisa | last1 = Du |access-date=November 29, 2018}}</ref><ref>{{cite web |url=https://www.businesstraveller.com/business-travel/2019/01/14/all-nippon-airways-announces-sponsorship-for-tennis-champion-naomi-osaka/ | title=All Nippon Airways announces sponsorship for tennis champion Naomi Osaka | website=Business Traveller | access-date=January 27, 2019}}</ref> Nissin Foods, one of the largest instant noodle companies internationally, was made to apologise and retract an advert, in which the company portrayed Osaka with white skin and light brown hair.<ref>{{Cite news |date=January 24, 2019 |title=Naomi Osaka: Tennis star responds to 'whitewashed' ad |url=https://www.bbc.com/news/world-asia-46986366 |access-date=May 29, 2024 |language=en-GB}}</ref><ref>{{Cite news |last=Victor |first=Daniel |date=January 22, 2019 |title=Ad Showing Naomi Osaka With Light Skin Prompts Backlash and an Apology |url=https://www.nytimes.com/2019/01/22/world/asia/naomi-osaka-anime-ad.html |access-date=May 29, 2024 |work=The New York Times |language=en-US |issn=0362-4331}}</ref>

In January 2021, Osaka was named the brand ambassador for [[Tag Heuer]] watches, as well as for [[Louis Vuitton]]; she appeared in their Spring-Summer 2021 campaign.<ref>{{Cite web|author=Oscar Holland|title=Naomi Osaka revealed as the new face of Louis Vuitton|url=https://www.cnn.com/style/article/naomi-osaka-louis-vuitton/index.html|access-date=January 26, 2021|website=CNN|date=January 12, 2021 |language=en}}</ref> She is also endorsed by [[Beats Electronics]], [[Bodyarmor SuperDrink]], [[Mastercard]], [[Panasonic]], [[FTX (company)|FTX]], [[PlayStation]], [[Levi's]], [[Airbnb]], [[Sweetgreen]], [[Workday, Inc.|Workday]], and [[GoDaddy]]. Her endorsement portfolio was estimated to earn Osaka up to $60 million per year.<ref>{{cite web|url=https://www.forbes.com/profile/naomi-osaka/|title=Naomi Osaka|work=[[Forbes]]|access-date=June 23, 2022}}</ref> As a result of FTX's [[Bankruptcy of FTX|$11-billion bankruptcy]], Osaka was sued for her involvement.<ref>{{Cite web |last=Tennis.com |title=Naomi Osaka among FTX celebrity promoters sued by crypto investors |url=https://www.tennis.com/baseline/articles/naomi-osaka-ftx-lawsuit-crypto-investors-tom-brady-gisele-steph-curry |access-date=December 3, 2022 |website=Tennis.com |language=en}}</ref><ref>{{Cite web |title=FTX founder Sam Bankman-Fried, Naomi Osaka named in crypto lawsuit |url=https://asia.nikkei.com/Spotlight/Cryptocurrencies/FTX-founder-Sam-Bankman-Fried-Naomi-Osaka-named-in-crypto-lawsuit |archive-url=https://web.archive.org/web/20221116190351/https://asia.nikkei.com/Spotlight/Cryptocurrencies/FTX-founder-Sam-Bankman-Fried-Naomi-Osaka-named-in-crypto-lawsuit |url-status=dead |archive-date=November 16, 2022 |access-date=December 3, 2022 |website=Nikkei Asia |language=en-GB }}</ref> In February 2022, the [[United States Court of Appeals for the Eleventh Circuit|U.S. 11th Circuit Court of Appeals]] ruled in a lawsuit against [[Bitconnect]] that the [[Securities Act of 1933]] extends to [[Targeted advertising|targeted solicitation]] using [[Influencer marketing|social media]].<ref>{{cite news|last=Lawler|first=Richard|date=February 18, 2022|title=Influencers beware: promoting the wrong crypto could mean facing a class-action lawsuit|website=The Verge|publisher=Vox Media|url=https://www.theverge.com/2022/2/18/22941470/bitconnect-ponzi-bitcoin-securities-act-sec-lawsuit-influencers-youtube-tiktok|access-date=July 13, 2022}}</ref>

[[Panasonic]] announced the signing of Osaka as brand ambassador in June 2021.<ref>{{Cite web |date=June 24, 2021 |title=Panasonic Announces Signing of Professional Women's Tennis Player Naomi Osaka as Brand Ambassador |url=https://www.businesswire.com/news/home/20210624005399/en/Panasonic-Announces-Signing-of-Professional-Women%E2%80%99s-Tennis-Player-Naomi-Osaka-as-Brand-Ambassador |access-date=January 9, 2023 |website=www.businesswire.com |language=en}}</ref> She is a promoter of the "Panasonic Green Impact" initiative alongside Olympic swimmer [[Michael Phelps]] and Olympic figure skater [[Nathan Chen]].<ref>{{Cite web |date=January 4, 2023 |title=Panasonic launches a phygital CES booth with a sustainability message |url=https://venturebeat.com/games/panasonic-launches-a-phygital-ces-booth-with-a-sustainability-message/ |access-date=January 9, 2023 |website=VentureBeat |language=en-US}}</ref> [[Panasonic]] enlisted the three celebrity athletes for its sustainability mission and they were part of an ad campaign for climate change that included individual commercials and a commercial in which all three athletes are featured.<ref>{{Citation |title=Panasonic GREEN IMPACT Campaign Anthem |url=https://www.youtube.com/watch?v=EDByJ9gS_gM |language=en |access-date=January 9, 2023}}</ref><ref>{{Citation |title=Panasonic GREEN IMPACT Campaign – Naomi Osaka | date=January 4, 2023 |url=https://www.youtube.com/watch?v=DyvEoggbLrg |language=en |access-date=January 9, 2023}}</ref>

==Activism==
Osaka has become a leading activist in professional tennis. Her decision to withdraw from the [[2020 Western & Southern Open|2020 Cincinnati Open]] in New York to raise awareness for the [[Shooting of Jacob Blake|police shooting of Jacob Blake]] led the tournament to postpone all [[Association of Tennis Professionals]] (ATP) and [[Women's Tennis Association]] (WTA) matches for a day in support of her cause.<ref>{{Cite web|last=Macfarlane|first=Christina|title='I have a lot of regrets.' Tennis champion Naomi Osaka opens up about her crippling shyness|url=https://edition.cnn.com/2020/05/13/tennis/naomi-osaka-time-out-tennis-spt-intl/index.html|access-date=May 21, 2020|website=CNN|date=May 13, 2020 }}</ref><ref name=blake-shooting/> At the 2020 US Open beginning the following week, each mask she wore as she walked onto the court (due to the [[COVID-19 pandemic]]) prominently displayed the name of an African American who had been killed in the preceding few years, the majority in the year before the tournament, and the majority killed by police. She highlighted [[Breonna Taylor]], [[Elijah McClain]], [[Ahmaud Arbery]], [[Trayvon Martin]], [[George Floyd]], [[Philando Castile]], and [[Tamir Rice]]; and was praised directly by the parents of Martin and Arbery.<ref name=seven-masks/><ref name="thanks">{{cite web |last1=Holcombe | last2 = Martin | first2 = Jill |first1=Madeline |title=Naomi Osaka nearly moved to tears by messages from families of Ahmaud Arbery and Trayvon Martin |url=https://www.cnn.com/2020/09/09/sport/naomi-osaka-ahmaud-arbery-trayvon-martin-thank-you-spt-trnd/index.html |website=CNN |access-date=January 16, 2021 | date = September 9, 2020}}</ref> Prior to these acts of activism, Osaka had also travelled to Minnesota to attend the protests of the [[murder of George Floyd]]. She outlined her personal reasons for supporting the [[Black Lives Matter]] movement and protesting against police brutality in an op-ed in ''[[Esquire (magazine)|Esquire]]'' magazine.<ref>{{Cite web|last=Osaka|first=Naomi|title=I Never Would've Imagined Writing This Two Years Ago|url=https://www.esquire.com/sports/a33022329/naomi-osaka-op-ed-george-floyd-protests/|access-date=September 1, 2020|website=Esquire|date=July 1, 2020}}</ref>

Osaka was named a 2020 [[Sports Illustrated Sportsperson of the Year|''Sports Illustrated'' Sportsperson of the Year]] for her activism alongside the year's other prominent activist sports champions [[LeBron James]], [[Breanna Stewart]], and [[Patrick Mahomes]], as well as medical worker [[Laurent Duvernay-Tardif]].<ref>{{Cite magazine|title=SI's 2020 Sportsperson of the Year: The Activist Athlete|url=https://www.si.com/sportsperson/2020/12/06/sportsperson-2020-james-stewart-mahomes-osaka-duvernay-tardif|access-date=December 8, 2020| date = December 6, 2020|magazine=Sports Illustrated|language=en-us}}</ref> She was also honored as one of the [[Time 100]] most influential people in the world in 2020 for her activism, having also been named to the list in 2019 for representing professional tennis well as an excellent role model and a major champion.<ref>{{Cite magazine|title=Naomi Osaka: The 100 Most Influential People of 2019|url=https://time.com/collection/100-most-influential-people-2019/5567714/naomi-osaka/|access-date=September 22, 2020|magazine=Time|language=en-us}}</ref><ref>{{Cite magazine|title=Naomi Osaka: The 100 Most Influential People of 2020|url=https://time.com/collection/100-most-influential-people-2020/5888802/naomi-osaka-icon/|access-date=September 23, 2020|magazine=Time}}</ref> Osaka's activism has drawn attention from the scholarly community studying celebrity and advocacy, especially during the COVID-19 pandemic and following the police killing of George Floyd.<ref>{{Cite journal |last=Deflem |first=Mathieu |date=2023 |title=The Criminal Justice Activism of Naomi Osaka: A Case Study in the Criminology of Celebrity Culture |url=https://doi.org/10.1007/s12103-022-09681-w |journal=American Journal of Criminal Justice |volume=48 |issue=3 |pages=723–748 |language=en |doi=10.1007/s12103-022-09681-w |issn=1936-1351 |pmc=9023043 |pmid=35475124}}</ref><ref>Deflem, Mathieu (2022). "[https://deflem.blogspot.com/2022/02/celebrity-activism-racial-justice.html Celebrity Activism on Racial Justice during COVID-19: The Death of George Floyd, the Rise of Naomi Osaka, and the Celebritization of Race in Pandemic Times.]" International Review of Sociology 32(1): 63–87. doi=10.1080/03906701.2022.2052457</ref>


Osaka has been featured as the main character in a [[manga]] series published by [[Kodansha]] in ''[[Nakayoshi]]'', a leading Japanese [[Shōjo manga|shojo]] magazine. The series is being drawn by [[Futago Kamikita]] and was made with the help of Osaka's sister Mari. The first edition appeared in the February 2021 issue of the magazine, which was released in December 2020.<ref>{{cite web | url=https://www.animenewsnetwork.com/interest/2020-11-30/tennis-champion-naomi-osaka-stars-in-new-manga/.166847| title=Tennis Champion Naomi Osaka Stars in New Manga | website=Anime News Network | access-date=November 30, 2020 | date = November 30, 2020 | last = Lee | first = Choo Sum}}</ref><ref>{{cite web |title=Japan's tennis champion Naomi Osaka inspires manga character |url=https://www.bbc.com/news/world-asia-55126319 |website=BBC |access-date=January 16, 2021 | date = November 30, 2020}}</ref>
Osaka is a brand ambassador for Japanese automobile manufacturer [[Nissan]] and Japanese electronics manufacturer [[Citizen Watch]].<ref name=nikkei/><ref>{{cite web |title=Citizen nominates tennis pro Naomi Osaka as new brand ambassador. |url=http://www.citizenwatch-global.com/news/2018/20180826/index.html |website=Citizen Watch |accessdate=November 3, 2018}}</ref> She also endorses several other Japanese companies, including noodle maker [[Nissin Foods]], cosmetics producer [[Shiseido]], the broadcasting station [[Wowow]], and airline [[All Nippon Airways]] (ANA).<ref name="forbes">{{cite web |last1=Newcomb |first1=Tim |title=The Continued Rise Of Naomi Osaka And Her Business Star |url=https://www.forbes.com/sites/timnewcomb/2018/09/18/the-continued-rise-of-naomi-osaka-and-her-endorsements/#16873257670b |website=Forbes |accessdate=November 3, 2018}}</ref><ref>{{cite web |title=Shiseido signs tennis star Osaka to help expand global appeal |url=http://www.thejakartapost.com/life/2018/11/20/shiseido-signs-tennis-star-osaka-to-help-expand-global-appeal.html |website=The Jakarta Post |first1 = Lisa | last1 = Du |accessdate=November 29, 2018}}</ref><ref>{{cite web | url=https://www.businesstraveller.com/business-travel/2019/01/14/all-nippon-airways-announces-sponsorship-for-tennis-champion-naomi-osaka/ | title=All Nippon Airways announces sponsorship for tennis champion Naomi Osaka | website=Business Traveller | accessdate=January 27, 2019}}</ref> Osaka is one of the most marketable female athletes in the world, earning an estimated $16 million in endorsements alone in 2019, which placed her second in the world behind Serena Williams who earned $25 million in endorsements.<ref name="forbes-list">{{cite web |title=The Highest-Paid Female Athletes 2019: Serena And Osaka Dominate |url=https://www.forbes.com/sites/kurtbadenhausen/2019/08/06/the-highest-paid-female-athletes-2019-serena-and-osaka-dominate/ |website=Forbes |accessdate=30 August 2019}}</ref>
In March 2021, Osaka spoke out against [[Xenophobia and racism related to the COVID-19 pandemic|anti-Asian hate crimes]].<ref>{{Cite web|date=March 29, 2021|title=Naomi Osaka speaks out against anti-Asian hate crimes|url=https://www.japantimes.co.jp/sports/2021/03/29/tennis/osaka-against-asian-hate-crimes/|access-date=August 8, 2021|website=The Japan Times|language=en-US}}</ref>


==Personal life==
==Personal life==
Osaka began a relationship with American rapper [[Cordae]] (then YBN Cordae) in 2019.<ref>{{cite web |title=YBN Cordae Discusses Girlfriend Naomi Osaka's U.S. Open Success |url=https://www.complex.com/sports/2019/09/ybn-cordae-discusses-girlfriend-naomi-osakas-us-open-success |access-date=September 2, 2019 |website=Complex |archive-date=September 2, 2019 |archive-url=https://web.archive.org/web/20190902213833/https://www.complex.com/sports/2019/09/ybn-cordae-discusses-girlfriend-naomi-osakas-us-open-success |url-status=dead }}</ref><ref>{{cite web |date=August 26, 2020 |title=Top 5 Photos 8/26: Osaka wishes Cordae a happy birthday |url=http://baseline.tennis.com/article/90278/top-5-photos-wta-atp |access-date=September 2, 2020 |website=Baseline Tennis}}</ref> In January 2023, not long after withdrawing from the Australian Open, Osaka revealed that she was pregnant with her first child with Cordae.<ref name=":1" /> Osaka later said she hoped to return to tennis for the [[Australian Open|2024 Australian Open]] in January 2024.<ref>{{Cite web |last=Mohamed |first=Aman |date=April 4, 2023 |title="I'll be competing in Australia next year"- Naomi Osaka reveals her plans to return to Melbourne in 2024 |url=https://www.sportskeeda.com/tennis/news-naomi-osaka-reveals-comeback-plan-intends-play-australian-open-2024 |access-date=April 5, 2023 |website=www.sportskeeda.com |language=en-us}}</ref> During her pregnancy, Osaka received antibiotics to treat [[Group B streptococcus]]. She also learned that the umbilical cord had been wrapped around her unborn child's neck.<ref>{{Cite web |title=Naomi Osaka talks relationship with Cordae after breakup rumors |url=https://nypost.com/2023/12/14/sports/naomi-osaka-talks-relationship-with-cordae-after-breakup-rumors/ |access-date=February 2, 2024 |website=[[New York Post]] |date=December 14, 2023 }}</ref> On July 7, 2023, she welcomed a healthy girl.<ref>{{cite web|url=https://people.com/naomi-osaka-boyfriend-cordae-welcome-first-baby-daughter-exclusive-7504607|title=Naomi Osaka Welcomes First Baby, a Girl, with Boyfriend Cordae (Exclusive)|publisher=People.com|language=EN|date=July 7, 2023|access-date=July 7, 2023}}</ref> On January 6, 2025, Osaka announced that she and Cordae were no longer in a relationship, adding that there is "no bad blood" between the two and that Cordae is "an awesome person and father".<ref>https://old.reddit.com/r/tennis/comments/1hv2zdv/naomi_osaka_announces_her_and_cordae_are_no/</ref>
Osaka has a multi-ethnic background, with her father being born in Haiti and her mother being from Japan. She has been described as various combinations of Japanese, Haitian, and American by the media.<ref>{{cite web | url=https://ftw.usatoday.com/2017/08/naomi-osaka-us-open-mind-wanders-commercials-press-conference-funny-tennis | title=Naomi Osaka is a 19-year-old Japanese-American tennis player | website= USA Today| accessdate=September 9, 2018|first1 = Alysha| last1= Tsuji}}</ref><ref>{{cite web | url=https://www.scotsman.com/sport/tennis/new-horizons-open-up-for-serena-williams-and-naomi-osaka-at-us-open-1-4796924 | website = The Scotsman| title=New horizons open up for Serena Williams and Naomi Osaka | accessdate=September 9, 2018| first1= Alix | last1 = Ramsay}}</ref><ref>{{cite web | url=https://indianexpress.com/article/sports/tennis/naomi-osaka-vs-daria-kasatkina-indian-wells-final-5102896/ | title=Naomi Osaka dominates Daria Kasatkina | publisher=The Indian Express | accessdate=September 9, 2018}}</ref><ref>{{cite web | url=https://www.usatoday.com/story/sports/tennis/aus/2016/01/18/japanese-rising-star-naomi-osaka-serena-williams-australian-open/78956596/ | title=Rising Japanese tennis star Naomi Osaka is very dangerous | publisher=USA Today | accessdate=September 9, 2018| first1 = Nick | last1 = McCarvel}}</ref><ref>{{cite web | url=https://thegrio.com/2018/03/19/girl-crush-20-year-old-tennis-phenom-naomi-osaka-wins-her-first-professional-title/| website = The Grio | last1 = Johnson | first1=Jasmine | title=20 year old tennis phenom | accessdate=September 9, 2018}}</ref> She has said, "My dad's Haitian, so I grew up in a Haitian household in New York. I lived with my grandma. And my mom's Japanese and I grew up with the Japanese culture too, and if you're saying American, I guess because I lived in America, I also have that too."<ref name="washington-post"/> Her Haitian grandparents only spoke to her in [[Haitian Creole|Creole]] because they did not know English, while her mother conversed with her in Japanese.<ref name=ny-times/> Osaka has dual American and Japanese citizenship.{{efn|Japan’s Nationality Act requires dual citizens to choose a nationality by the age of 22; however, the Japanese government does not enforce this provision. Although some dual citizens have chosen to renounce one of their nationalities because of the law, others have opted to keep both of their citizenships without penalty. The ''[[Japan Times]]'' has stated, "it would be highly unusual if Naomi Osaka was forced to relinquish her US citizenship at the age of 22."<ref>{{cite web |title=What does Japan's Nationality Act really mean for its dual citizens? |url=https://www.japantimes.co.jp/community/2018/09/19/how-tos/japans-nationality-act-really-mean-dual-citizens/#.XJ1jlBNKjwc |website=Japan Times |accessdate=29 March 2019}}</ref>}} She can understand Japanese, but is not very confident speaking the language. She has said, "I can understand way more Japanese than I can speak."<ref name=time/> At press conferences, Osaka can take questions in Japanese but typically will answer them in English.<ref>{{cite web |title=Tennis-Osaka falls short of acing Japanese test |url=https://www.reuters.com/article/us-tennis-open-osaka/tennis-osaka-falls-short-of-acing-japanese-test-idUSKCN0YI1Q8 |website=Reuters |accessdate=November 3, 2018 | first1 = Pritha | last1 = Sarkar}}</ref><ref>{{cite web |title=Want to LOL? Just listen to anything rising star Naomi Osaka has to say |url=http://www.espn.com/espnw/sports/article/22752139/indian-wells-tennis-want-lol-just-listen-anything-naomi-osaka-say |website=espnW |accessdate=November 4, 2018| first1 = D'Arcy | last1 = Maine}}</ref>


=== Mental health challenges and advocacy ===
Osaka's background is particularly unusual given that she represents Japan, one of the most racially homogeneous countries in the world. In Japan, she is referred to as a ''[[hāfu]]'', meaning that she is half-Japanese.<ref name="time">{{cite news |title=Rising Tennis Star Naomi Osaka Always Looked Up to Serena Williams. Now She's Facing Her in the U.S. Open Final |url=http://time.com/5389697/naomi-osaka-us-open-finalist-serena-williams/ |work=Time |date=September 7, 2018|first1 = Laignee | last1 = Barron}}</ref> Osaka's Japanese grandparents did not initially accept her parents' relationship. This led to her parents relocating from Hokkaido to the city of Osaka, where she and her sister were born. As a result, her mother did not have contact with her family for nearly 15 years and Osaka did not get the chance to return to Japan until she was 11 years old. Her grandparents did not initially support her parents for building their daughters' lives around tennis.<ref name=ny-times/> However, they later began to support Osaka as a tennis player following her unexpected upset of Sam Stosur in her WTA Tour debut.<ref name=ny-times/> They were also proud of her in particular for winning the 2018 US Open.<ref>{{cite web |title=Naomi Osaka's grandfather in Hokkaido safe and proud |url=http://www.asahi.com/ajw/articles/AJ201809100017.html |website=The Asahi Shimbun |accessdate=November 3, 2018| first1 = Masafumi | last1 = Kamimura}}</ref>
Osaka has lived with depression since the 2018 US Open.<ref>{{cite web | url=https://www.goodmorningamerica.com/culture/story/naomi-osaka-shares-mental-health-tip-clarity-82774777 | title=Naomi Osaka shares mental health tips | publisher=Good Morning America | access-date=May 18, 2022}}</ref> In May 2021, she refused to take part in required press conferences during the French Open and was consequently fined $15,000 and threatened with expulsion from the tournament. On May 31, Osaka withdrew from the event to restore her mental health and well-being.<ref>{{cite web | url=https://www.npr.org/2021/06/01/1002092628/naomi-osaka-reveals-mental-health-struggles-and-other-athletes-rally-around-her | title=Naomi Osaka reveals mental health struggles | publisher=NPR | access-date=May 18, 2022}}</ref> Less than a month later, she pulled out of Wimbledon to take "some personal time with friends and family."<ref>{{cite web | url=https://thehill.com/policy/healthcare/mental-health/559023-naomi-osaka-pulls-out-of-the-wimbledon-tournament/ | title=Naomi Osaka pulls out of Wimbledon |website=[[The Hill (newspaper)|The Hill]] | date=June 17, 2021 | access-date=May 19, 2022}}</ref><ref>{{cite web | url=https://globalvoices.org/2021/06/22/naomi-osakas-french-open-and-wimbledon-withdrawals-highlights-athletes-mental-health/ | title=Naomi Osaka's French Open and Wimbledon withdrawals highlights athletes' mental health | date=June 22, 2021 |publisher=[[Global Voices]] | access-date=May 19, 2022}}</ref> At the 2020 Olympics, she lost in the third round.<ref>{{cite web | url=https://www.independent.co.uk/sport/olympics/naomi-osaka-tokyo-olympics-vondrousova-b1891145.html | title=Naomi Osaka admits mental health break contributed to shock loss at Tokyo Olympics | website=[[Independent.co.uk]] | date=July 27, 2021 | access-date=May 19, 2022}}</ref>


In September 2021 at the US Open, she lost to Leylah Fernandez. During the match, she threw her racket three times and received a code violation for firing a ball at the spectators.<ref>{{cite web | url=https://bestlifeonline.com/naomi-osaka-break-news/ | title=Naomi Osaka tearfully reveals she doesn't know if she'll play tennis again | website=[[Best Life (magazine)|Best Life]] | date=September 4, 2021 | access-date=May 19, 2022}}</ref> Asked why, she replied, "I'm not really sure why" and "recently I feel very anxious when things don't go my way."<ref>{{cite web | url=https://www.theguardian.com/society/2021/sep/04/im-dealing-with-stuff-naomi-osaka-questions-her-future-in-tennis | title=I'm dealing with stuff | website=[[TheGuardian.com]] | date=September 4, 2021 | access-date=May 19, 2022}}</ref> Osaka then announced she was taking an indefinite break from the sport. Later in 2021, she said she was in therapy.<ref>{{cite web | url=https://wwd.com/fashion-news/intimates/naomi-osaka-vs-collective-victorias-secret-1234997051/ | title=Naomi Osaka joins VS Collective, talks mental health and fashion | date=November 17, 2021 | website=[[Women's Wear Daily]] | access-date=May 19, 2022}}</ref>
Osaka has a shy, reserved personality.<ref name=first-post>{{cite web |title=US Open 2018: Naomi Osaka, the new face of tennis, gears up for another battle against 'biggest idol' Serena Williams |url=https://www.firstpost.com/sports/us-open-2018-naomi-osaka-the-new-face-of-tennis-gears-up-for-another-battle-against-biggest-idol-serena-williams-5137521.html |website=First Post |accessdate=November 4, 2018| first1 = Anuradha | last1 = Santhanam}}</ref> Her former coach Sascha Bajin was initially confused by her personality, saying, "I thought she was a little bit more of a diva because she didn't talk much. She doesn't really look at someone's eyes, but that's just because she was always so shy ... Back then I didn't know for what reason."<ref name=bajin-peace/> Osaka is also very frank and is regarded as having a dry sense of humor. During her 2018 Indian Wells Open victory speech, she began by saying "Um, hello ... I'm Naom ... oh never mind" and later noted, "This is probably going to be the worst acceptance speech of all time" after being worried about forgetting who to thank, and appearing to nearly forget to thank her opponent [[Daria Kasatkina]] as well as one of her sponsors [[Yonex]].<ref>{{cite web |title='Worst acceptance speech of all time': Nervous Osaka claims victory |url=https://www.smh.com.au/sport/tennis/worst-acceptance-speech-of-all-time-nervous-osaka-claims-victory-20180319-p4z50h.html |website=Sydney Morning Herald |accessdate=November 3, 2018}}</ref><ref>{{cite web |title=Get used to more speeches – Naomi Osaka has all the attributes to reach the very top |url=https://www.thenational.ae/sport/comment/get-used-to-more-speeches-naomi-osaka-has-all-the-attributes-to-reach-the-very-top-1.714507 |website=The National |accessdate=November 4, 2018}}</ref> She is currently dating American rapper [[YBN Cordae]]. <ref> {{cite web| title=YBN Cordae Discusses Girlfriend Naomi Osaka's U.S. Open Success |url=https://www.complex.com/sports/2019/09/ybn-cordae-discusses-girlfriend-naomi-osakas-us-open-success| website= Complex|accessdate=September 2, 2019}}</ref>

At the 2022 Indian Wells Open, a heckler unsettled Osaka to the point of tears.<ref>{{cite web | url=https://people.com/sports/naomi-osaka-reveals-she-saw-therapist-after-indian-wells-heckler/ | title=Naomi Osaka utilizing therapy after emotional incident with heckler |website=People | access-date=May 19, 2022}}</ref> She returned to therapy and later said it "really helped" and that she is better prepared for incidents. In a May 2022 interview, Osaka said that while there have been ups and downs, she feels very content with her mental health journey.<ref>{{cite web | url=https://blavity.com/naomi-osaka-mental-health-therapy-and-shifting-her-mindset?category1=blavity-u&category2=entertainment&item=5 | title=Naomi Osaka is still prioritizing her mental health |publisher=[[Blavity]] | access-date=May 19, 2022}}</ref>

==Business endeavors==
In 2021, Osaka became a co-owner of the [[North Carolina Courage]] in the [[National Women's Soccer League]], the top level of [[Women's association football|women's soccer]] in the U.S.<ref>{{cite web |title=Naomi Osaka debuted a new kit at the Australian Open for the NWSL team she now owns |url=https://www.insider.com/australian-open-naomi-osaka-debuts-nwsls-north-carolina-courage-kit-2021-2 |access-date=February 15, 2021 |website=Insider}}</ref><ref>{{cite web |title=Ownership |url=https://www.nccourage.com/ownership |access-date=February 15, 2021 |website=North Carolina Courage}}</ref> Osaka is an investor in a professional [[pickleball]] team which will be based in [[Miami]], [[Florida]], beginning in 2023.<ref>{{cite news |last=Knight |first=Brett |date=December 14, 2022 |title=Naomi Osaka And Patrick Mahomes Join Wave Of Celebrities Investing In Pickleball |url=https://www.forbes.com/sites/brettknight/2022/12/14/major-league-pickleball-naomi-osaka-patrick-mahomes/ |access-date=December 20, 2022 |work=Forbes |language=en}}</ref>

In May 2022, Osaka announced after being represented by IMG for six years, she is partnering with her agent, Stuart Duguid, to form her own sports agency, Evolve. Her contract with IMG expired at the end of 2021, and the renewal talks were stalled. Osaka and Duguid will have equity stakes in the new agency.<ref>{{cite web |date=May 13, 2022 |title=Naomi Osaka forms her own sports agency |url=https://www.bizjournals.com/bizwomen/news/latest-news/2022/05/naomi-osaka-forms-her-own-sports-agency.html |access-date=May 25, 2022 |website=Bizjournals}}</ref> On June 20, 2022, Osaka announced that she had signed [[Nick Kyrgios]] as her first client.<ref>{{cite web |last1=Snowball |first1=Ben |date=June 20, 2022 |title="Unlike any other" – Nick Kyrgios snapped up by Naomi Osaka's Evolve agency ahead of Wimbledon 2022 |url=https://www.eurosport.co.uk/tennis/wimbledon/2022/unlike-any-other-nick-kyrgios-snapped-up-by-naomi-osakas-evolve-agency-ahead-of-wimbledon-2022_sto9000610/story.shtml |access-date=June 23, 2022 |work=[[Eurosport]]}}</ref>

In 2022, Osaka and Duguid launched Hana Kuma, a media and production company.<ref name="Weprin">{{Cite web |last=Weprin |first=Alex |date=January 30, 2024 |title=Naomi Osaka's Hana Kuma Signs With CAA (Exclusive) |url=https://www.hollywoodreporter.com/business/business-news/caa-signs-naomi-osaka-hana-kuma-media-company-representation-1235809785/ |access-date=May 19, 2024 |website=The Hollywood Reporter |language=en-US}}</ref> It was initially launched in partnership with TheSpringHill Company and after a $5 million fundraising round, spun-off independently in 2023. The company has many ventures, including the video interview series "Good Trouble with [[Nick Kyrgios]]".<ref name="Weprin"/> In 2024, Hana Kuma announced a partnership with the LPGA to create a brand building programme for female golfers.<ref>{{Cite web |title=LPGA and Hana Kuma Join Forces to Launch Innovative Athlete Brand Building Program {{!}} LPGA {{!}} Ladies Professional Golf Association |url=https://www.lpga.com/news/2024/lpga-and-hana-kuma-join-forces-to-launch-innovative-athlete-brand-building-program |access-date=May 19, 2024 |website=LPGA |language=en}}</ref>


==Career statistics==
==Career statistics==
Line 134: Line 223:
===Grand Slam singles performance timeline===
===Grand Slam singles performance timeline===
{{Performance key|short=yes}}
{{Performance key|short=yes}}
''Current through [[2019 US Open (tennis)|2019 US Open]].''


{|class=wikitable style=text-align:center;font-size:100%
{| class="wikitable plainrowheaders" style=text-align:center
|+ {{Sronly|Naomi Osaka Grand Slam singles statistic}}
|-
|-
! scope="col" | Tournament
!Tournament
! [[2015 WTA Tour|2015]]
!2015
! [[2016 WTA Tour|2016]]
!2016
! [[2017 WTA Tour|2017]]
!2017
! [[2018 WTA Tour|2018]]
!2018
! [[2019 WTA Tour|2019]]
!2019
!2020
! scope="col" | {{Tooltip| SR | Strike Rate}}
!2021
! scope="col" | {{Tooltip| W–L | Win–Loss}}
!2022
! scope="col" | Win %
!2023
!2024
!2025
!{{Tooltip|SR|Strike rate}}
!{{Tooltip|W–L|Win–loss}}
! Win %
|-
|-
|align=left|[[Australian Open]]
|align=left|[[Australian Open]]
|A
|A
|style="background:#afeeee;"|[[2016 Australian Open – Women's Singles|3R]]
|style=background:#afeeee|[[2016 Australian Open – Women's singles|3R]]
|style="background:#afeeee;"|[[2017 Australian Open – Women's Singles|2R]]
|style=background:#afeeee|[[2017 Australian Open – Women's singles|2R]]
|style="background:#afeeee;"|[[2018 Australian Open – Women's Singles|4R]]
|style=background:#afeeee|[[2018 Australian Open – Women's singles|4R]]
|style="background:lime;"|[[2019 Australian Open – Women's Singles|'''W''']]
|style=background:lime|[[2019 Australian Open – Women's singles|'''W''']]
|style=background:#afeeee|[[2020 Australian Open – Women's singles|3R]]
|1 / 4
|style=background:lime|[[2021 Australian Open – Women's singles|'''W''']]
|13–3
|style=background:#afeeee|[[2022 Australian Open – Women's singles|3R]]
|{{tennis win percentage|won=13|lost=3|integer=yes}}
|A
|style=background:#afeeee|[[2024 Australian Open – Women's singles|1R]]
|
|2 / 8
|24–6
|{{tennis win percentage|won=24|lost=6|integer=yes}}
|-
|-
|align=left|[[French Open]]
|align=left|[[French Open]]
|A
|A
|style="background:#afeeee;"|[[2016 French Open – Women's Singles|3R]]
|style=background:#afeeee|[[2016 French Open – Women's singles|3R]]
|style="background:#afeeee;"|[[2017 French Open – Women's Singles|1R]]
|style=background:#afeeee|[[2017 French Open – Women's singles|1R]]
|style="background:#afeeee;"|[[2018 French Open – Women's Singles|3R]]
|style=background:#afeeee|[[2018 French Open – Women's singles|3R]]
|style="background:#afeeee;"|[[2019 French Open – Women's Singles|3R]]
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|A
|0 / 4
|style=background:#afeeee|[[2021 French Open – Women's singles|2R]]
|6–4
|style=background:#afeeee|[[2022 French Open – Women's singles|1R]]
|{{tennis win percentage|won=6|lost=4|integer=yes}}
|A
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|
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|{{tennis win percentage|won=8|lost=6|integer=yes}}
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|align=left|[[The Championships, Wimbledon|Wimbledon]]
|align=left|[[Wimbledon Championships|Wimbledon]]
|style="background:#ecf2ff;"|[[2015 Wimbledon Championships – Women's Singles Qualifying|Q1]]
|[[2015 Wimbledon Championships – Women's singles qualifying|Q1]]
|A
|A
|style="background:#afeeee;"|[[2017 Wimbledon Championships – Women's Singles|3R]]
|style=background:#afeeee|[[2017 Wimbledon Championships – Women's singles|3R]]
|style="background:#afeeee;"|[[2018 Wimbledon Championships – Women's Singles|3R]]
|style=background:#afeeee|[[2018 Wimbledon Championships – Women's singles|3R]]
|style="background:#afeeee;"|[[2019 Wimbledon Championships – Women's Singles|1R]]
|style=background:#afeeee|[[2019 Wimbledon Championships – Women's singles|1R]]
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|A
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|{{tennis win percentage|won=5|lost=4|integer=yes}}
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|-
|align=left|[[US Open (tennis)|US Open]]
|align=left|[[US Open (tennis)|US Open]]
|style="background:#ecf2ff;"|[[2015 US Open – Women's Singles Qualifying|Q2]]
|[[2015 US Open – Women's singles qualifying|Q2]]
|style="background:#afeeee;"|[[2016 US Open – Women's Singles|3R]]
|style=background:#afeeee|[[2016 US Open – Women's singles|3R]]
|style="background:#afeeee;"|[[2017 US Open – Women's Singles|3R]]
|style=background:#afeeee|[[2017 US Open – Women's singles|3R]]
|style="background:lime;"|[[2018 US Open – Women's Singles|'''W''']]
|style=background:lime|[[2018 US Open – Women's singles|'''W''']]
|style="background:#afeeee;"|[[2019 US Open – Women's Singles|4R]]
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|1 / 4
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|14–3
|style=background:#afeeee|[[2022 US Open – Women's singles|1R]]
|{{tennis win percentage|won=14|lost=3|integer=yes}}
|A
|- style="font-weight:bold; background:#efefef;"
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|{{tennis win percentage|won=23|lost=6|integer=yes}}
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<ref name=":2">{{Citation |title=2021 French Open – Women's singles |date=January 21, 2024 |work=Wikipedia |url=https://en.wikipedia.org/enwiki/w/index.php?title=2021_French_Open_%E2%80%93_Women%27s_singles&oldid=1197654558 |access-date=June 5, 2024 |language=en}}</ref> <small>''(Naomi withdraws in Second Round 2021 French Open)''</small>


===Grand Slam tournament finals===
===Grand Slam tournament finals===
====Singles: 4 (4 titles)====
{| class="sortable wikitable"
{| class="sortable wikitable"
|+ {{Sronly|Naomi Osaka Grand Slam singles finals statistics}}
|-
|-
!Result
!scope="col"| Result
!style="width:40px" | Year
!scope="col"| Year
!style="width:120px"| Tournament
!scope="col"| Tournament
!style="width:60px" | Surface
!scope="col"| Surface
!style="width:170px"| Opponent
!scope="col"| Opponent
!style="width:130px" class="unsortable"| Score
!scope="col" class="unsortable"| Score
|- style="background:#ccf;"
|- style="background:#ccf;"
|style="background:#98fb98;"|Win||[[2018 US Open – Women's Singles|2018]]||[[US Open (tennis)|US Open]]||Hard||{{flagicon|USA}} [[Serena Williams]]||6–2, 6–4
| style="background:#98FB98;"|Win
| [[2018 US Open – Women's singles|2018]] || [[US Open (tennis)|US Open]] || Hard || {{flagicon|United States}} [[Serena Williams]] || [[2018 US Open – Women's singles final|6–2, 6–4]]
|- style="background:#ffc;"
|- style="background:#ffc;"
|style="background:#98fb98;"|Win||[[2019 Australian Open – Women's Singles|2019]]||[[Australian Open]]||Hard||{{flagicon|CZE}} [[Petra Kvitová]]|| 7–6<sup>(7–2)</sup>, 5–7, 6–4
| style="background:#98FB98;"|Win
| [[2019 Australian Open – Women's singles|2019]] || [[Australian Open]] || Hard || {{flagicon|CZE}} [[Petra Kvitová]] || 7–6<sup>(7–2)</sup>, 5–7, 6–4
|- style="background:#ccf;"
| style="background:#98FB98;"|Win
| [[2020 US Open – Women's singles|2020]] || US Open <small>(2)</small> || Hard || {{flagicon|BLR}} [[Victoria Azarenka]] || 1–6, 6–3, 6–3
|- style="background:#ffc;"
| style="background:#98FB98;"|Win
| [[2021 Australian Open – Women's singles|2021]] || Australian Open <small>(2)</small> || Hard || {{flagicon|United States}} [[Jennifer Brady]] || 6–4, 6–3
|-
|}
|}


==Notes==
==See also==
* [[Naomi Osaka (TV series)]]
{{notelist}}


==References==
==References==
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==External links==
==External links==
{{Commons}}
{{Commons}}
* {{Official website}} {{en icon}} {{jp icon}}
* {{Official website}} {{in lang|en|ja}}
* {{WTA}}
* {{WTA}}
* {{ITF profile}}
* {{ITF}}
* {{Fed Cup player}}
* {{Fed Cup player}}
* [http://www.jta-tennis.or.jp/player/tabid/198/pdid/181/Default.aspx Naomi Osaka] – [[Japan Tennis Association]]


{{Top Japanese female tennis players}}
{{s-start}}
{{s-start}}
{{s-sports}}
{{s-sports}}
{{succession box|
{{succession box|
|before = {{flagicon|ROM}} [[Simona Halep]]<br>{{flagicon|AUS}} [[Ashleigh Barty]]
| before = {{flagicon|ROM}} [[Simona Halep]]<br />{{flagicon|AUS}} [[Ashleigh Barty]]
|after = {{flagicon|AUS}} [[Ashleigh Barty]]<br>{{flagicon|AUS}} [[Ashleigh Barty]]
| after = {{flagicon|AUS}} [[Ashleigh Barty]]<br />{{flagicon|AUS}} [[Ashleigh Barty]]
|title = [[List of WTA number 1 ranked tennis players|World No.&nbsp;1]]
| title = [[List of WTA number 1 ranked singles tennis players|World No.&nbsp;1]]
|years = 28 January 2019 – 23 June 2019<br>12 Aug 2019 – 8 September 2019
| years = January 28{{nbsp}} June 23, 2019<br />August 12{{nbsp}}– September 8, 2019
|}}
|}}
{{s-ach|aw}}
{{s-ach|aw}}
{{succession box|
{{succession box|
|before={{flagicon|RUS}} [[Daria Gavrilova]]
| before={{flagicon|RUS}} [[Daria Gavrilova]]
|after={{flagicon|USA}} [[Catherine Bellis]]
| after={{flagicon|United States}} [[Catherine Bellis]]
|title=[[WTA Awards#Newcomer of the Year|WTA Newcomer of the Year]]
| title=[[WTA Awards#Newcomer of the Year|WTA Newcomer of the Year]]
|years=[[2016 WTA Tour|2016]]
| years=2016
|}}
|}}
{{succession box
| title = [[Laureus World Sports Award for Sportswoman of the Year|Laureus World Sportswoman of the Year]]
| before = {{flagicon|United States}} [[Simone Biles]]
| after = ''Incumbent''
| years = 2021
}}
{{s-sports|oly}}
{{Succession box|title=[[List of people who have lit the Olympic Cauldron|Final Olympic torchbearer]]|before={{flagicon|KOR}} [[Yuna Kim]]|after={{flagicon|CHN}} [[Dinigeer Yilamujiang]] and [[Zhao Jiawen]]|years=[[2020 Summer Olympics|Tokyo 2020]] along [[Ayaka Takahashi]]}}
{{Succession box|title=[[List of people who have lit the Olympic Cauldron|Final Summer Olympic torchbearer]]|before={{flagicon|BRA}} [[Vanderlei de Lima]]|after={{flagicon|FRA}} [[Marie-José Pérec]] and [[Teddy Riner]]|years=[[2020 Summer Olympics|Tokyo 2020]] along [[Ayaka Takahashi]]}}
{{s-end}}
{{s-end}}
{{Naomi Osaka}}
{{Navboxes
| title=Articles and topics related to Naomi Osaka
| state=collapsed
| list1=
{{navboxes|title=Naomi Osaka in the [[Grand Slam (tennis)|Grand Slam tournaments]]
| list1=
{{Australian Open women's singles champions}}
{{Australian Open women's singles champions}}
{{US Open women's singles champions}}
{{US Open women's singles champions}}
}}
{{Tennis World Number Ones (women)}}
{{Tennis World Number Ones (women)}}
{{Associated Press Female Athlete of the Year navbox}}
{{Top ten tennis players|wtasingles=y}}
{{BET Award for Sportswoman of the Year}}
{{Top ten female tennis players from the Asian Tennis Federation}}
{{Laureus World Sportswoman of the Year}}
{{Top Japanese female tennis players}}
{{SI Sportsman of the Year}}
{{SI Swimsuit Cover Models}}
{{2020–2029 Sports Illustrated Swimsuit}}
{{ESPY Female Athlete}}
}}
{{Portal bar|Biography|Japan|Tennis}}
{{Authority control}}
{{Authority control}}


{{DEFAULTSORT:Osaka, Naomi}}
{{DEFAULTSORT:Osaka, Naomi}}
[[Category:Naomi Osaka| ]]
[[Category:1997 births]]
[[Category:1997 births]]
[[Category:Living people]]
[[Category:Living people]]
[[Category:21st-century American women]]
[[Category:21st-century American sportswomen]]
[[Category:21st-century Japanese women]]
[[Category:21st-century Japanese sportswomen]]
[[Category:American female tennis players]]
[[Category:American sportspeople of Haitian descent]]
[[Category:American women of Japanese descent]]
[[Category:Grand Slam (tennis) champions in women's singles]]
[[Category:Hopman Cup competitors]]
[[Category:Japanese emigrants to the United States]]
[[Category:Japanese female tennis players]]
[[Category:Japanese female tennis players]]
[[Category:Japanese people of Haitian descent]]
[[Category:Japanese people of Haitian descent]]
[[Category:Japanese-American tennis players]]
[[Category:Australian Open (tennis) champions]]
[[Category:People with acquired American citizenship]]
[[Category:Grand Slam (tennis) champions in women's singles]]
[[Category:Sportspeople from Osaka]]
[[Category:Hopman Cup competitors]]
[[Category:American tennis players of Japanese descent]]
[[Category:North Carolina Courage owners]]
[[Category:People from Chūō, Osaka]]
[[Category:Sportspeople from Pembroke Pines, Florida]]
[[Category:Sportspeople from Pembroke Pines, Florida]]
[[Category:Tennis people from Florida]]
[[Category:Sportspeople from Osaka]]
[[Category:Tennis players from Florida]]
[[Category:US Open (tennis) champions]]
[[Category:US Open (tennis) champions]]
[[Category:World No. 1 tennis players]]
[[Category:Asia Game Changer Award winners]]
[[Category:Laureus World Sports Awards winners]]
[[Category:Olympic cauldron lighters]]
[[Category:Olympic tennis players for Japan]]
[[Category:Tennis players at the 2020 Summer Olympics]]
[[Category:WTA number 1 ranked singles tennis players]]
[[Category:Japanese human rights activists]]
[[Category:American human rights activists]]
[[Category:Black Lives Matter people]]
[[Category:Sportspeople of Haitian descent]]
[[Category:Sportspeople of American descent]]
[[Category:Tennis players at the 2024 Summer Olympics]]

Latest revision as of 00:11, 8 January 2025

Naomi Osaka
Naomi Osaka smiling during her match against Azarenka in the 2020 US Open.
Osaka at the 2020 US Open
Country (sports) Japan
ResidenceBeverly Hills, California, United States
Born (1997-10-16) October 16, 1997 (age 27)
Chūō-ku, Osaka, Japan
Height1.80 m (5 ft 11 in)
Turned proOctober 2012
PlaysRight
CoachPatrick Mouratoglou (2024–)
Prize money$22,047,163[1]
Official websitenaomiosaka.com
Singles
Career record287–166
Career titles7
Highest rankingNo. 1 (28 January 2019)
Current rankingNo. 50 (6 January 2025)
Grand Slam singles results
Australian OpenW (2019, 2021)
French Open3R (2016, 2018, 2019)
Wimbledon3R (2017, 2018)
US OpenW (2018, 2020)
Other tournaments
Tour FinalsRR (2018, 2019)
Olympic Games3R (2020)
Doubles
Career record2–15
Career titles0
Highest rankingNo. 324 (3 April 2017)
Grand Slam doubles results
Australian Open1R (2017)
French Open2R (2016)
Wimbledon1R (2017)
US Open1R (2016, 2017)
Team competitions
Fed CupWG II PO (2018)
Hopman CupRR (2018)
Last updated on: 1 January 2025.

Naomi Osaka (Japanese: 大坂 なおみ, Hepburn: Ōsaka Naomi, Japanese pronunciation: [oːsaka naomi], born October 16, 1997) is a Japanese professional tennis player. She has been ranked world No. 1 in singles by the Women's Tennis Association (WTA) and is the first Asian player to hold the top ranking in singles. Osaka is a four-time Grand Slam singles champion, with two Australian Open and two US Open titles. Her seven titles on the WTA Tour include two at the Premier Mandatory level. At the 2018 US Open and the 2019 Australian Open, Osaka won her first two major titles in back-to-back tournaments, becoming the first Japanese player to win a major singles title and the first woman to win successive major singles titles since Serena Williams in 2015.

Born in Japan to a Haitian-American father and a Japanese mother, Osaka has lived and trained in the United States since age three. She came to prominence at age 16 when she defeated former US Open champion Samantha Stosur in her WTA Tour debut at the 2014 Stanford Classic. Two years later, she reached her first WTA final at the 2016 Pan Pacific Open in Tokyo and entered the top 50 of the WTA rankings. Osaka broke into the upper echelon of women's tennis in 2018, winning her first WTA title at the Indian Wells Open, then defeating Williams in the final of the US Open. In 2021, suffering from depression and other issues, Osaka retired from the French Open, dropped out of Wimbledon, lost early at the US Open, and ended her season early. She took maternity leave in 2023 and returned to competition in 2024.

Osaka is one of the world's most marketable athletes. In 2020, she ranked eighth among athletes in endorsement income and had the highest-ever annual income of any female athlete. Osaka is also recognized as an activist, having showed support for the Black Lives Matter movement. She was named one of the 2020 Sports Illustrated Sportspersons of the Year for her activism, particularly during her US Open championship run, and was included on Time's annual list of the 100 most influential people in the world in 2019, 2020, and 2021. She was the 2021 Laureus World Sportswoman of the Year. At the 2020 Tokyo Olympics, she became the first tennis player to light the Olympic cauldron during the opening ceremony.

On the court, Osaka has an aggressive playing style with a powerful serve that can reach 201 kilometers per hour (125 mph).

Early life and background

[edit]

Naomi Osaka was born on October 16, 1997, in Chūō-ku, Osaka, Japan to Leonard François, who is from Jacmel, Haiti, and Tamaki Osaka (大坂 環, Ōsaka Tamaki), who is from Nemuro, Hokkaido, Japan.[2] She has an older sister, Mari, who is a former professional tennis player. The sisters were given their mother's family name as that was the practice when just one spouse held native citizenship. Osaka's parents met when her father was visiting Hokkaido while he was a college student in New York.[3][4]

When Osaka was four years old, her family moved from Japan to the U.S. to live with her father's parents in Elmont, New York on Long Island.[5] Her father was inspired to teach his daughters how to play tennis by watching the Williams sisters compete at the 1999 French Open. Having little experience as a tennis player himself, he sought to emulate how Richard Williams trained his daughters to become two of the best players in the world, despite having never played the sport. François remarked that "the blueprint was already there. I just had to follow it," with regard to the detailed plan Richard had developed for his daughters.

François began coaching Naomi and Mari once they settled in the United States.[3] In 2006, her family moved to Florida when she was eight or nine years old so that they would have better opportunities to train. She practiced on the Pembroke Pines public courts during the day and was homeschooled at night.[3] When Naomi was 15 years old, she began working with Patrick Tauma at the ISP Academy.[6] In 2014, she moved to the Harold Solomon Tennis Academy.[7] She later trained at the ProWorld Tennis Academy.[8]

Although Osaka was raised in the United States, her parents decided that their daughters would represent Japan. They said,

"We made the decision that Naomi would represent Japan at an early age. She was born in Osaka and was brought up in a household of Japanese and Haitian culture. Quite simply, Naomi and her sister Mari have always felt Japanese so that was our only rationale. It was never a financially motivated decision nor were we ever swayed either way by any national federation."[8]

This decision may have also been motivated by a lack of interest from the United States Tennis Association (USTA) when she was still a young player.[3] The USTA later offered her the opportunity to train at their national training center in Boca Raton, Florida when she was 15 years old, but she declined.[8]

Professional career

[edit]

2011–2015: First WTA Tour match win

[edit]
A reporter holding a microphone to Osaka with Williams to the side smiling
Osaka interviewed at the 2014 Stanford Classic alongside Serena Williams

Osaka never competed on the ITF Junior Circuit, the premier international junior tour, and only played in a small number of junior tournaments at any age level.[9] She instead skipped to the ITF Women's Circuit and played her first qualifying match in October 2011 on her 14th birthday.[10] She then made her professional main-draw debut in doubles at her next tournament in March with her sister Mari. Meanwhile, she did not qualify for her first singles main draw until July in her seventh such attempt. Her best result of the 2012 season came at a $10k event in Amelia Island, where she lost to her sister in the semifinals.[11] Osaka has never won a title at the ITF level, only managing to finish runner-up on four occasions.[11] Her first two finals came at the $25K level, one of which was in June 2013 in El Paso, Texas. The other was in March 2014 in Irapuato, Mexico and included a victory over her sister.[11]

In September 2013, Osaka turned professional shortly before turning 16 years old.[12] She entered her first two qualifying draws on the WTA Tour that same month at the Challenge Bell in Quebec and the Pan Pacific Open in Tokyo. The latter event was her first opportunity to compete professionally in Japan.[11] The following summer, Osaka qualified for her first WTA Tour main draw at the 2014 Stanford Classic. In her tour level debut, she upset world No. 19, Samantha Stosur, in a tight match where she saved a match point in the second set tiebreak and came back from a 5–3 deficit in the third set. She was still just 16 years old and ranked No. 406 at the time.[13][14] Osaka also won a match as a wildcard at the Japan Women's Open, her only other WTA Tour main draw of the year.[15] These victories helped her progress into the top 250 of the rankings before the end of the season.[16]

Despite not winning another WTA Tour main-draw singles match in 2015, Osaka continued to climb up the rankings.[9][16] She reached her two highest level finals, the first at the $75k Kangaroo Cup in Japan and the second at the $50k Surbiton Trophy in England.[11] Following these runner-up results, Osaka was ranked high enough to enter qualifying at the last two Grand Slam singles events of the year, Wimbledon and the US Open. She won her first match at the US Open, but was unable to qualify for either main draw.[11] Nonetheless, Osaka had a strong finish to the year. In October during the WTA Finals, she won the Rising Stars Invitational four-player exhibition tournament, defeating heavy favorite and world No. 35, Caroline Garcia, in the final.[17] Continuing to play in November, Osaka then reached the biggest final of her career at the WTA 125 Hua Hin Championships in Thailand. After a semifinal at a $75k event in Japan, she finished the year ranked No. 144.[16]

2016: Newcomer of the Year, top 50

[edit]
Osaka ready to serve
Osaka at the 2016 French Open

Osaka began the season playing three tournaments in Australia. Her results during this stretch were good enough to bring her near the top 100,[16] which allowed her to play in WTA Tour-level events all year.[9] Most notably, she qualified for her first Grand Slam main draw at the Australian Open and made it to the third round. In particular, she upset No. 21, Elina Svitolina, in straight sets in the second round before losing to No. 16, Victoria Azarenka.[18] Back in the United States, Osaka received a wildcard into the Miami Open, her first Premier Mandatory main draw. During the event, she won two matches including a victory over No. 18, Sara Errani.[19] With this success, she progressed into the top 100 of the WTA rankings for the first time.[16]

In the clay-court events leading up to the French Open, Osaka needed to qualify for every event she entered. She only managed to do so at a single event, the Charleston Open, where she lost her only match in the main draw.[11] Nonetheless, Osaka was ranked high enough to be directly accepted into the main draw of the French Open. In her debut at the tournament, she recorded her only two clay-court match wins of the season. She also won the first set against No. 6 Simona Halep, but ultimately lost the match.[20][21] She then did not play the grass-court season after suffering an injury shortly after the French Open.[22][11]

Osaka returned to tennis in the middle of July.[11] At the US Open in August, she reached the third round at a major event for the third time that year. She upset No. 30 CoCo Vandeweghe in the first round before losing to No. 9 Madison Keys, in three sets.[23] During her match against Keys, she had a 5–1 lead in the third set before ultimately losing in a tiebreak.[24] After the tournament, Osaka began the Asian hardcourt season with two tournaments in Tokyo, first losing in the second round at the Japan Women's Open.[25] Having already reached her first two career WTA quarterfinals earlier in the year, she then made her breakthrough as a wildcard at the Premier-level Pan Pacific Open. She upset No. 12 Dominika Cibulková and No. 20 Svitolina on the road to making her first WTA final at the age of 18. At the time, Cibulkova was the highest-ranked player she ever defeated. Additionally, she was the first Japanese player to contest the final at the event since Kimiko Date in 1995.[26][27] Osaka ultimately finished runner-up to Caroline Wozniacki.[28] Nonetheless, she entered the top 50 of the WTA rankings for the first time.[16] At the end of the season, she was named the WTA Newcomer of the Year.[29]

2017: Two top-10 victories

[edit]

After her huge improvement the previous year, Osaka was unable to set a new career-high ranking in 2017. Nonetheless, she maintained a steady ranking throughout the season, rising no higher than No. 44 while falling no lower than No. 68, her year-end ranking.[16] She did not win more than two main draw matches at any event all year.[11]

Osaka's best tournament result of the season came at the Canadian Open, where she reached the round of sixteen as a qualifier. During the event, she upset No. 16 Anastasija Sevastova before needing to retire against world No. 1, Karolína Plíšková, due to an abdominal injury. She had won the second set against Plíšková.[30] Her next best results of the year came at the last two major events of the season, where she made it to the third round at each of Wimbledon and the US Open. She had a strong debut at Wimbledon, upsetting No. 23 Barbora Strýcová, before losing to No. 11 Venus Williams.[31][32] Her US Open was then highlighted by her first-round win against defending champion and No. 6, Angelique Kerber, the first top-ten victory of Osaka's career.[33][34] However, her run was ended by veteran qualifier Kaia Kanepi.[35] This was the second consecutive year she lost in the third round of the US Open, after having at least a one-break lead in the third set.[36]

Osaka in particular struggled to play on clay courts. After winning her first two matches at the Charleston Open,[37] she did not win another main-draw match on clay the remainder of the season. Osaka did well in her first full grass-court season on the WTA Tour, going 4–4 behind her performance at Wimbledon.[11] Her biggest wins of the year all came on hardcourt. In addition to her results at the Canadian Open and the US Open, she also recorded a second top-ten victory over No. 5, Venus Williams, at the Hong Kong Open, her last tournament of the year.[38]

2018: US Open champion, world No. 4

[edit]
Osaka hitting a forehand
Osaka at the 2018 Nottingham Open

Following her lack of improvement in 2017, Osaka hired Sascha Bajin to be her coach in the off-season.[39][40] In their second tournament together, Osaka produced her career best result at a major event. At the Australian Open, she reached the fourth round after defeating two top-20 players in Elena Vesnina and hometown favorite Ashleigh Barty, ultimately losing to world No. 1, Simona Halep.[41][42][43] This result helped her return to the top 50 within the next month.[16]

At the Indian Wells Open, Osaka had the next big breakthrough of her career. Having never won a professional title or made it past the third round at a Premier Mandatory event, she won the tournament convincingly, only dropping one set in the middle round of the tournament. In the quarterfinals and semifinals, she defeated two top-five opponents in Karolína Plíšková and Halep, the latter of which was her first victory over a current No. 1 player.[44][45] She then closed out the tournament with a win in the final over fellow up-and-coming player Daria Kasatkina, making her the youngest champion at the event in ten years.[46] With her first title, she surged past her previous career-high ranking to No. 22 in the world.[16] Osaka played the following week as well at the Miami Open and extended her win streak by one additional match in her first meeting against her childhood idol, Serena Williams, who was competing in just her second tournament back from maternity leave.[47]

After her success in the early months of the season, Osaka had a rather quiet middle of the year. She reached the third round at both the French Open and Wimbledon, matching her best performance at each tournament.[48][49] The closest she came to winning another tournament was on grass at the Nottingham Open, where she lost to top seed Barty in the semifinals.[50]

Osaka did not have another breakthrough result until the US Open, where she won her second title of the year. Like at Indian Wells, she only dropped one set in the middle round of the event, this time to No. 20 Aryna Sabalenka. In the three early rounds, she only lost a total of seven games and notably recorded a double bagel victory against Aliaksandra Sasnovich.[51] Osaka was drawn against Madison Keys in the semifinals, and was able to avenge her tough loss from the 2016 US Open to advance to the final.[52] In the final, she defeated Serena Williams for the second time in 2018 to win her first major title. The match was marred and overshadowed by an on-court dispute between Williams and the umpire highlighted by Williams receiving a game penalty. Boos from the crowd continued during the match and the award ceremony.[53] Osaka later said that the win was "a little bit bittersweet" and "it wasn't necessarily the happiest memory."[54] Nonetheless, she became the first Japanese woman to contest a major singles final and the first Japanese Grand Slam singles champion.[55][56]

Now ranked in the top ten, Osaka extended her win streak to ten matches by reaching the final at the Pan Pacific Open in Tokyo for the second time in her career. Plíšková was able to end her win streak in the final.[57] Osaka then reached the semifinals at the Premier Mandatory China Open.[58] With her third consecutive deep run, she rose to a career-best ranking of world No. 4, matching the record of Kimiko Date and Kei Nishikori for the highest ranking held by a Japanese player in history.[59] Osaka closed out the year by participating at the WTA Finals, where she was grouped with Sloane Stephens, Angelique Kerber, and Kiki Bertens. She lost all three of her round-robin matches, notably retiring against Bertens due to a hamstring injury to end her season.[60] Osaka finished the year as the WTA Tour leader in prize money, having earned almost $6.4 million.[61]

2019: Australian Open title, world No. 1

[edit]

Osaka entered the Australian Open as the fourth seed and also one of eleven players in contention for the world No. 1 ranking.[62] She made it to the final against Petra Kvitová, having beaten Hsieh Su-wei in the third round despite being one set, 2–4 and 0–40 down at one point.[63] Anastasija Sevastova also won the first set against her in the fourth round, while No. 8 Karolína Plíšková pushed her to three sets in the semifinals.[64][65] After Osaka won the first set in the final, Kvitová saved three championship points before breaking Osaka in back-to-back service games to win the second set. Nonetheless, Osaka recovered to win the championship. She was the first woman to win consecutive major singles titles since Serena Williams in 2015, and was the first player to follow up her first Grand Slam singles title with another at the next such event since Jennifer Capriati in 2001.[66] She also became the first Asian player to be ranked No. 1 in the world in singles.[67][68] Despite this title, she parted ways with her coach Sascha Bajin following the tournament.[69]

Osaka struggled after the Australian Open. She lost in the fourth and third rounds at the two Premier Mandatory tournaments in March, the Indian Wells Open and the Miami Open.[70][71] After beginning the clay-court season with a semifinal at the Stuttgart Grand Prix where she withdrew due to an abdominal injury,[72] her best results were two quarterfinals at the Madrid Open and the Italian Open.[73] She also withdrew from the latter due to a right hand injury.[74] Osaka matched her best result at the French Open, losing to Kateřina Siniaková in the third round.[75] During the grass-court season, Osaka lost in the early rounds to Yulia Putintseva at both tournaments she entered, including the first round at Wimbledon.[76] As a result, she lost the No. 1 ranking to Ashleigh Barty.[16]

Before the US Open, Osaka made the quarterfinals at the two Premier 5 tournaments in August, the Canadian Open and the Cincinnati Open, where she was defeated by Serena Williams and Sofia Kenin respectively.[77][78] These performances helped her regain the No. 1 ranking so that she had the top seed at the US Open. Nonetheless, her title defense came to an end in the fourth round against Belinda Bencic, who defeated her for the third time during the year.[79] She then fell to No. 4 in the world.[16] Following the tournament, Osaka went back to having her father as her coach.[80] This change had an immediate impact, as Osaka won her next two tournaments. First, she won the Pan Pacific Open in her hometown of Osaka, defeating Anastasia Pavlyuchenkova in the final.[81] Two weeks later, she won the Premier Mandatory China Open. During the tournament, she defeated reigning US Open champion Bianca Andreescu in the quarterfinals and world No. 1 and reigning French Open champion Ashleigh Barty in the final, both in three sets after losing the first.[82] This was Andreescu's first loss since March.[83] These results brought her to No. 3 in the world.[16] At the end of the season, Osaka qualified for the WTA Finals for the second consecutive year. However, after defeating Petra Kvitová in her first match, she withdrew due to injury.[84]

2020: Second US Open title

[edit]
Osaka smiling as she walks across the court
Osaka at the 2020 Cincinnati Open in New York

Osaka only played four tournaments in 2020, largely due to the COVID-19 pandemic. Before the tour shutdown, she lost to No. 2 Karolína Plíšková in a semifinal at the Brisbane International and Coco Gauff in the third round of the Australian Open, squandering a chance to serve for the match in the former.[85][86] When the tour resumed, Osaka played the Cincinnati Open and the US Open, which were held in back-to-back weeks in New York. Osaka did not lose a match at either event. At the Cincinnati Open, she defeated four players ranked in the 20s before defaulting in the final against Victoria Azarenka due to a hamstring injury.[87][88] Both Osaka and Azarenka reached the final again at the US Open, where Osaka became the first player to win a US Open women's singles final by coming from a set down since 1994. This was her second US Open title in three years.[89][90] Following the US Open, Osaka skipped the French Open and ended her season because of her lingering hamstring injury.[91]

During both of these tournaments in New York, Osaka drew attention for her activism. She had initially withdrawn from the Cincinnati Open before the semifinal to raise awareness for the police shooting of Jacob Blake, only staying in the tournament after they chose to support her cause by postponing the event for a day.[92] At the US Open, Osaka walked onto the court for her seven matches wearing a different black mask, each of which with the name of an African American who had been killed in recent years often without significant repercussions.[93]

2021: Australian Open title, mental health issues

[edit]

Osaka was seeded third at the 2021 Australian Open. She recorded straight-sets wins over Anastasia Pavlyuchenkova, Caroline Garcia, and Ons Jabeur, before defeating Garbiñe Muguruza in three sets in the fourth round despite facing match points during the third set (the only match in which she lost a set during the tournament). She went on to defeat Hsieh Su-wei in the quarterfinals, Serena Williams in the semifinals, and 22nd seed Jennifer Brady[94] in the final to claim her second Australian Open title.[95] She became one of only three players in the Open Era to win her first four Grand Slam finals, alongside Roger Federer and Monica Seles.[96][97]

Osaka returned to the Miami Open as the second seed, making the quarterfinals for the first time. She lost the quarterfinal in a shock defeat to Maria Sakkari, winning just four games.[98] As a result, Osaka missed out on regaining the No. 1 ranking.

Osaka was seeded second at the French Open. Shortly before the start of the tournament, she announced that she would not conduct her mandatory media assignments.[99] After Osaka won her first match in straight sets and did not hold a press conference, she was fined $15,000 and threatened with rising levels of fines and expulsion.[100] The following day, she announced her withdrawal from the tournament, citing mental health issues.[101] Many fellow athletes and sponsors have voiced support for Osaka, with some noting a rarely discussed issue of mental health, although the overall reaction from the wider tennis community was mixed.[102] On June 17, Osaka's agent announced that she would not participate in the upcoming Wimbledon Championships but would take part in the Tokyo Olympics.[103][104]

Osaka would later return to action at the Cincinnati Open where she was defending finalist. She beat Coco Gauff in the second round but was upset by Jil Teichmann in the third round, both in three sets.

At the US Open, Osaka failed to defend her title, losing her composure and the match to the eventual tournament runner-up, Canadian Leylah Fernandez in the third round, despite serving for the match in the second set. During the match, Osaka threw her racket and received a code violation for hitting a ball into the stands.[105] In her post-match press conference, Osaka announced another hiatus from the sport "for a while", revealing that winning did not make her happy anymore.[106]

2022: Miami Open final

[edit]

Osaka returned to competition at the Melbourne Summer Set 1 tournament seeded No. 1 and made the semifinals, before withdrawing due to an abdominal injury.[107] Her next tournament was the Australian Open, where she was seeded 13th and attempting to defend her title. However, she was eliminated in the third round by Amanda Anisimova, in three sets.[108] Osaka described being happy despite the loss and discussed steps she is taking to improve her mental health and have "more fun on the court".[109][110]

She dropped 71 spots in the WTA rankings to No. 85 following the tournament, with the tournament absences in 2021 contributing to the drop.[111]

In March, Osaka entered the Indian Wells Open where she beat Sloane Stephens in the first round, but lost to Veronika Kudermetova in straight sets in the second. Osaka was upset by a heckler in the crowd during the second round and was in tears during the match. Interviewed after the match, she compared her treatment to heckling at the tournament in 2001 that led the Williams sisters to boycott it for 13 years.[112]

The following week, Osaka entered the Miami Open. She reached her first final since the 2021 Australian Open after defeating 22nd seed Belinda Bencic in the semifinals. Ranked 77 at the time, she became the lowest ranked finalist in the tournament's history. However, she lost the final to second seed Iga Świątek, in straight sets.[113]

Following a right ankle injury at the Madrid Open, Osaka withdrew from the Italian Open.[114] On May 23, she lost in the first round of the French Open to Anisimova.[115]

Playing for the first time since the French Open, Osaka won her first-round match at San Jose against Zheng Qinwen in three sets, but lost in the next round to Coco Gauff, in straight sets.[116][117] At the Canadian Open, Osaka retired from her first match against Kaia Kanepi due to back injury.[118] Against home favorite Danielle Collins, Osaka started positive into the US Open but lost the first set in a tiebreak, and her first-round match in two sets. Her troubles continued at the Pan Pacific Open where, as the defending champion, she withdrew in the second round citing abdominal pain. She had played only one game in her first round match against Daria Gavrilova who retired due to a knee injury.[119]

2023: Pregnancy and hiatus

[edit]

Days before the Australian Open, Osaka announced her withdrawal from the championships, as she was expecting her first child with rapper Cordae.[120] In her withdrawal message, she confirmed with fans that she would be back for the Australian Open in 2024.[121][122] She later announced her return at the 2024 Brisbane International.[123]

2024: Two quarterfinals, French Open Świątek match

[edit]

Osaka made her return to professional tennis as a wildcard at Brisbane.[124] Playing her first professional match since September 2022, she defeated Tamara Korpatsch in the first round in straight sets, which included a 20-point first set tiebreak, before losing to defending champion Karolína Plíšková in the second round in a very tight three-set match.[125][126][127] In the Australian Open, Osaka faced Caroline Garcia in the first round, where she lost in straight sets.[128] In the Qatar Ladies Open, Osaka reached quarterfinals where she again lost to Karolína Plíšková.[129] Osaka returned to Indian Wells, securing straight set victories over Sara Errani and Liudmila Samsonova. She fell to the 24th seed Elise Mertens in the 3rd round. In Miami, Osaka took out Italian player Elisabetta Cocciaretto and Ukrainian Elina Svitolina in straight sets before falling to Frenchwoman Carolina Garcia in their third face-off of the year.

Osaka started her clay court season in Rouen, losing to clay court specialist and former French Open semifinalist, Martina Trevisan in straight sets.[130] She returned to Madrid with a comprehensive victory over Greet Minnen.[131] In a tough three-setter, Osaka lost to Samsonova in the second round.[132] She reached the fourth round in Rome, defeating notably seeded Daria Kasatkina and Marta Kostyuk in straight sets,[133] before falling to Zheng Qinwen.[134]

At the 2024 French Open, Osaka lost an unexpectedly close second-round match to the three-time winner and world No. 1 Iga Świątek where she had set point the first set and one match point.[135]

Osaka then returned to grass courts for the first time since 2019 in 's-Hertogenbosch, Netherlands. She made a winning return and beat fourth-seeded Elise Mertens in the first round,[136] eventually making it to the quarterfinals where she was defeated by Bianca Andreescu.[137] At the 2024 Wimbledon Championships, Osaka got through to the second round before losing to Emma Navarro.[138][139]

At the Canadian Open, Osaka defeated Ons Jabeur in the first round,[140] but was eliminated in the second round after losing to Elise Mertens.[141]

She reached the second round at the US Open with a win over 10th seed Jelena Ostapenko,[142] before losing to Karolína Muchová.[143]

Osaka played her next tournament at the China Open, making it through to the fourth round where she retired due to a back injury at the start of the third set against Coco Gauff.[144] On 21 October, she announced she was ending her season early because of her back injury.[145]

2025: Auckland Open final

[edit]

Osaka started her 2025 season at the Auckland Open, where she reached the final but retired due to an abdominal injury after winning the first set against Clara Tauson.[146]

National representation

[edit]

Fed Cup

[edit]

Osaka made her Fed Cup debut for Japan in 2017, while the team was competing in the Asia/Oceania Zone Group I. Japan won all nine of their rubbers to advance out of their round-robin pool. Although Osaka won her singles match in the play-off against Kazakhstan, the team lost their other two matches and was not able to advance.[147] The following year with Osaka absent, Japan was able to defeat Kazakhstan in the same group to advance to the 2018 World Group II Play-offs.[148] In this stage, they hosted Great Britain in a usual five rubber tie. At this point, Osaka returned to the team and won her opening match against Heather Watson.[149] After she lost her next rubber to Johanna Konta, Kurumi Nara was also able to defeat Watson to set up a decisive doubles match. Japan won that final rubber to earn promotion to World Group II in 2019.[150]

Hopman Cup

[edit]

Osaka made her Hopman Cup debut in 2018 with Yūichi Sugita. Japan was making their first appearance at the exhibition tournament since 2001.[151] They were grouped with Switzerland, the United States, and Russia, and lost all three of their ties. Osaka's only match win came in singles against Russian Anastasia Pavlyuchenkova. She also had a big highlight in the mixed doubles match against Switzerland when she served an ace past Roger Federer.[152]

Olympics

[edit]

Osaka lit the Olympic cauldron during the opening ceremony.[153] Coming into Tokyo Olympics, Osaka was ranked 2nd in the world. She lost in the 3rd round of the games to eventual finalist and silver medalist Markéta Vondroušová after two straight set victories.[154]

Playing style

[edit]
Osaka finishing her service motion
Osaka serving

Osaka is an aggressive baseline player.[155] She has excellent raw power, especially on her forehand and her serve. Osaka could hit 160 kilometers per hour (100 mph) forehands at the age of sixteen, and her serve has been clocked at up to 200 kilometers per hour (124 mph), making her one of the ten fastest servers on record in WTA history.[156][157] While she can use her power to hit high numbers of winners, Osaka's key to success is to be able to win long rallies.[156] One of the first notable instances in which that strategy proved successful was when Osaka made her first career WTA final at the 2016 Pan Pacific Open.[158]

Osaka credited improving her mental approach and cutting down on unforced errors for her breakthrough season in 2018. At the Wuhan Open towards the end of the year, she noted, "I think my biggest improvement is mental. My game is more consistent, there are not so many unforced errors. I'm not sure how many I hit today, but sometimes last year I was hitting a lot!"[159] She attributed some of these changes to her coach Sascha Bajin, saying, "Since I was working with [Bajin] — and I tend to be a bit negative on myself — I feel like I've gotten a little bit more optimistic ... I fight myself a lot, so he's sort of been, like, the peacemaker." Bajin also agreed with Osaka on the impact of having a patient, positive approach in each match.[160]

Coaches

[edit]

Osaka was coached by her father Leonard François from the age of three.[3] Patrick Tauma was one of her first coaches after she began playing on the ITF Women's Circuit. He was her coach in 2013 when she reached her first ITF final.[6][161] In 2014, she spent seven months training at an academy run by Harold Solomon, a former top five player and French Open finalist who has coached many top women's tennis players including Jennifer Capriati and Mary Joe Fernández.[162][7] Under Solomon, Osaka defeated Sam Stosur for her first WTA match win.[7] Following her loss at the 2016 US Open where she could not convert a 5–1 lead in the third set, the Japan Tennis Association helped arrange for David Taylor to be her new coach.[156]

After the 2017 season, Osaka switched coaches to Sascha Bajin, who had previously served as a hitting partner to top players such as Serena Williams, Victoria Azarenka, and Caroline Wozniacki.[163][160] With Bajin as her coach, Osaka won her first Premier Mandatory title and two Grand Slam singles titles.[46][56] She also rose to No. 1 in the world after having never previously been ranked above No. 40.[16] Bajin was named the inaugural WTA Coach of the Year in 2018.[164] Shortly after her 2019 Australian Open title, Osaka surprisingly split with Bajin, saying, she "wouldn't put success over [her] happiness."[69][165] She hired Jermaine Jenkins to be her new coach from March until October. Jenkins had previously worked as a hitting partner for Venus Williams.[166] Osaka temporarily replaced him with her father in September. She won her first two tournaments with him back as her coach.[167][80] She subsequently hired Wim Fissette at the start of the 2020 season[168] but announced on September 13, 2024, the end of their coaching relationship.[169]

In September 2024 Osaka added Patrick Mouratoglou as her coach.[170]

Endorsements

[edit]

Osaka is one of the most marketable athletes in the world. She earned an estimated $16 million in endorsements alone in 2019, which placed her second among female athletes behind only Serena Williams who earned $25 million.[171] The following year, she became the highest-paid female athlete of all time, having earned $37.4 million in total, including $34 million in endorsements.[172][173] Overall, she was the 29th highest-paid athlete in 2020 and the 8th highest-paid athlete in endorsements alone.[174][175]

Nike has been Osaka's apparel sponsor since 2019,[176] having replaced Adidas who had sponsored her for four years.[177] With Nike, Osaka has a clothing collection featuring her monogram logo that uses her initials and is inspired by the Japanese flag.[178][179] The Japanese sporting equipment manufacturer Yonex has supplied her with rackets since 2008.[180] She plays with the Yonex Ezone 98 racket, equipped with Polytour Pro 125 and Rexis 130 strings.[181] Osaka has been represented by the IMG management company since 2016.[182] In 2022, Osaka left IMG, in order to set up her own sports management agency, Evolve, alongside her agent, Stuart Duguid.

Osaka is a brand ambassador for Japanese automobile manufacturer Nissan and Japanese electronics manufacturer Citizen Watch.[180][183] She also endorses several other Japanese companies, including noodle maker Nissin Foods, cosmetics producer Shiseido, the broadcasting station Wowow, and airline All Nippon Airways (ANA).[184][185][186] Nissin Foods, one of the largest instant noodle companies internationally, was made to apologise and retract an advert, in which the company portrayed Osaka with white skin and light brown hair.[187][188]

In January 2021, Osaka was named the brand ambassador for Tag Heuer watches, as well as for Louis Vuitton; she appeared in their Spring-Summer 2021 campaign.[189] She is also endorsed by Beats Electronics, Bodyarmor SuperDrink, Mastercard, Panasonic, FTX, PlayStation, Levi's, Airbnb, Sweetgreen, Workday, and GoDaddy. Her endorsement portfolio was estimated to earn Osaka up to $60 million per year.[190] As a result of FTX's $11-billion bankruptcy, Osaka was sued for her involvement.[191][192] In February 2022, the U.S. 11th Circuit Court of Appeals ruled in a lawsuit against Bitconnect that the Securities Act of 1933 extends to targeted solicitation using social media.[193]

Panasonic announced the signing of Osaka as brand ambassador in June 2021.[194] She is a promoter of the "Panasonic Green Impact" initiative alongside Olympic swimmer Michael Phelps and Olympic figure skater Nathan Chen.[195] Panasonic enlisted the three celebrity athletes for its sustainability mission and they were part of an ad campaign for climate change that included individual commercials and a commercial in which all three athletes are featured.[196][197]

Activism

[edit]

Osaka has become a leading activist in professional tennis. Her decision to withdraw from the 2020 Cincinnati Open in New York to raise awareness for the police shooting of Jacob Blake led the tournament to postpone all Association of Tennis Professionals (ATP) and Women's Tennis Association (WTA) matches for a day in support of her cause.[198][92] At the 2020 US Open beginning the following week, each mask she wore as she walked onto the court (due to the COVID-19 pandemic) prominently displayed the name of an African American who had been killed in the preceding few years, the majority in the year before the tournament, and the majority killed by police. She highlighted Breonna Taylor, Elijah McClain, Ahmaud Arbery, Trayvon Martin, George Floyd, Philando Castile, and Tamir Rice; and was praised directly by the parents of Martin and Arbery.[93][199] Prior to these acts of activism, Osaka had also travelled to Minnesota to attend the protests of the murder of George Floyd. She outlined her personal reasons for supporting the Black Lives Matter movement and protesting against police brutality in an op-ed in Esquire magazine.[200]

Osaka was named a 2020 Sports Illustrated Sportsperson of the Year for her activism alongside the year's other prominent activist sports champions LeBron James, Breanna Stewart, and Patrick Mahomes, as well as medical worker Laurent Duvernay-Tardif.[201] She was also honored as one of the Time 100 most influential people in the world in 2020 for her activism, having also been named to the list in 2019 for representing professional tennis well as an excellent role model and a major champion.[202][203] Osaka's activism has drawn attention from the scholarly community studying celebrity and advocacy, especially during the COVID-19 pandemic and following the police killing of George Floyd.[204][205]

Osaka has been featured as the main character in a manga series published by Kodansha in Nakayoshi, a leading Japanese shojo magazine. The series is being drawn by Futago Kamikita and was made with the help of Osaka's sister Mari. The first edition appeared in the February 2021 issue of the magazine, which was released in December 2020.[206][207] In March 2021, Osaka spoke out against anti-Asian hate crimes.[208]

Personal life

[edit]

Osaka began a relationship with American rapper Cordae (then YBN Cordae) in 2019.[209][210] In January 2023, not long after withdrawing from the Australian Open, Osaka revealed that she was pregnant with her first child with Cordae.[120] Osaka later said she hoped to return to tennis for the 2024 Australian Open in January 2024.[211] During her pregnancy, Osaka received antibiotics to treat Group B streptococcus. She also learned that the umbilical cord had been wrapped around her unborn child's neck.[212] On July 7, 2023, she welcomed a healthy girl.[213] On January 6, 2025, Osaka announced that she and Cordae were no longer in a relationship, adding that there is "no bad blood" between the two and that Cordae is "an awesome person and father".[214]

Mental health challenges and advocacy

[edit]

Osaka has lived with depression since the 2018 US Open.[215] In May 2021, she refused to take part in required press conferences during the French Open and was consequently fined $15,000 and threatened with expulsion from the tournament. On May 31, Osaka withdrew from the event to restore her mental health and well-being.[216] Less than a month later, she pulled out of Wimbledon to take "some personal time with friends and family."[217][218] At the 2020 Olympics, she lost in the third round.[219]

In September 2021 at the US Open, she lost to Leylah Fernandez. During the match, she threw her racket three times and received a code violation for firing a ball at the spectators.[220] Asked why, she replied, "I'm not really sure why" and "recently I feel very anxious when things don't go my way."[221] Osaka then announced she was taking an indefinite break from the sport. Later in 2021, she said she was in therapy.[222]

At the 2022 Indian Wells Open, a heckler unsettled Osaka to the point of tears.[223] She returned to therapy and later said it "really helped" and that she is better prepared for incidents. In a May 2022 interview, Osaka said that while there have been ups and downs, she feels very content with her mental health journey.[224]

Business endeavors

[edit]

In 2021, Osaka became a co-owner of the North Carolina Courage in the National Women's Soccer League, the top level of women's soccer in the U.S.[225][226] Osaka is an investor in a professional pickleball team which will be based in Miami, Florida, beginning in 2023.[227]

In May 2022, Osaka announced after being represented by IMG for six years, she is partnering with her agent, Stuart Duguid, to form her own sports agency, Evolve. Her contract with IMG expired at the end of 2021, and the renewal talks were stalled. Osaka and Duguid will have equity stakes in the new agency.[228] On June 20, 2022, Osaka announced that she had signed Nick Kyrgios as her first client.[229]

In 2022, Osaka and Duguid launched Hana Kuma, a media and production company.[230] It was initially launched in partnership with TheSpringHill Company and after a $5 million fundraising round, spun-off independently in 2023. The company has many ventures, including the video interview series "Good Trouble with Nick Kyrgios".[230] In 2024, Hana Kuma announced a partnership with the LPGA to create a brand building programme for female golfers.[231]

Career statistics

[edit]

Grand Slam singles performance timeline

[edit]
Key
W  F  SF QF #R RR Q# DNQ A NH
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.
Naomi Osaka Grand Slam singles statistic
Tournament 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 SR W–L Win %
Australian Open A 3R 2R 4R W 3R W 3R A 1R 2 / 8 24–6 80%
French Open A 3R 1R 3R 3R A 2R 1R A 2R 0 / 7 8–6 57%
Wimbledon Q1 A 3R 3R 1R NH A A A 2R 0 / 4 5–4 56%
US Open Q2 3R 3R W 4R W 3R 1R A 2R 2 / 8 23–6 79%
Win–loss 0–0 6–3 5–4 14–3 12–3 9–1 9–1 2–3 0–0 3–4 0–0 4 / 27 60–22 73%

[232] (Naomi withdraws in Second Round 2021 French Open)

Grand Slam tournament finals

[edit]

Singles: 4 (4 titles)

[edit]
Naomi Osaka Grand Slam singles finals statistics
Result Year Tournament Surface Opponent Score
Win 2018 US Open Hard United States Serena Williams 6–2, 6–4
Win 2019 Australian Open Hard Czech Republic Petra Kvitová 7–6(7–2), 5–7, 6–4
Win 2020 US Open (2) Hard Belarus Victoria Azarenka 1–6, 6–3, 6–3
Win 2021 Australian Open (2) Hard United States Jennifer Brady 6–4, 6–3

See also

[edit]

References

[edit]
  1. ^ "Career Prize Money Leaders" (PDF). WTA Tennis. Retrieved January 1, 2025.
  2. ^ "Naomi Osaka". WTA Tennis. Retrieved November 3, 2018.
  3. ^ a b c d e Larmer, Brook (August 23, 2018). "Naomi Osaka's Breakthrough Game". The New York Times. Retrieved August 27, 2018.
  4. ^ Noori Farzan, Antonia (September 10, 2018). "Japanese, Haitian, and now a Grand Slam winner: Naomi Osaka's historic journey to the U.S. Open". Washington Post. Retrieved September 11, 2018.
  5. ^ "Naomi Osaka". National Women's History Museum. Retrieved May 29, 2024.
  6. ^ a b "Naomi Osaka Tennis Biography". Patrick Tauma. August 24, 2013. Retrieved November 3, 2018 – via YouTube.
  7. ^ a b c Downs, Tom. "Naomi Osaka: Japanese Firepower". Tennis View Magazine. Retrieved November 3, 2018.
  8. ^ a b c Perrota, Tom (September 12, 2018). "Naomi Osaka: The Tennis Star Who Was Overlooked by Everyone". Wall Street Journal. Retrieved November 3, 2018.
  9. ^ a b c "Naomi Osaka Statistics". Core Tennis. Retrieved October 30, 2018.
  10. ^ Uchida, Akira (October 5, 2016). "大坂なおみが18年間を振り返る「お姉ちゃんこそ最大のライバル」" [Naomi Osaka looks back over 18 years: 'My sister is my biggest rival']. Sportiva (in Japanese). Retrieved October 30, 2018.
  11. ^ a b c d e f g h i j k "Naomi Osaka". ITF Tennis. Archived from the original on September 23, 2018. Retrieved October 30, 2018.
  12. ^ "Naomi Osaka: US Open champion's career in pictures". CNN. September 11, 2018. Retrieved October 9, 2018.
  13. ^ "Qualifier Stuns Stosur In Stanford". WTA Tennis. Retrieved October 30, 2018.
  14. ^ Nguyen, Courtney. "Watch: 16-year-old standout Naomi Osaka hits a massive forehand". Sports Illustrated. Retrieved October 30, 2018.
  15. ^ "Keys, Svitolina, Watson advance at Japan Women's Open". Tennis.com. Retrieved October 30, 2018.
  16. ^ a b c d e f g h i j k l m "Naomi Osaka Rankings History". WTA Tennis. Retrieved October 30, 2018.
  17. ^ "Osaka Wins WTA Rising Stars Invitational". WTA Tennis. Retrieved October 30, 2018.
  18. ^ Lisanti, Jamie (January 23, 2016). "Australian Open Day 6: Keys beats Ivanovic after scare; Muguruza exits". Sports Illustrated. Retrieved September 11, 2018.
  19. ^ "Vamos Rafa! A Popular Nadal Tries Again At Miami Open". CBS Miami. Associated Press. March 25, 2016. Retrieved October 31, 2018.
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[edit]
Sporting positions
Preceded by World No. 1
January 28 – June 23, 2019
August 12 – September 8, 2019
Succeeded by
Awards
Preceded by WTA Newcomer of the Year
2016
Succeeded by
Preceded by Laureus World Sportswoman of the Year
2021
Succeeded by
Incumbent
Olympic Games
Preceded by Final Olympic torchbearer
Tokyo 2020 along Ayaka Takahashi
Succeeded by
Preceded by Final Summer Olympic torchbearer
Tokyo 2020 along Ayaka Takahashi
Succeeded by