is a professional Japanese tennis player. Okamura has career-high WTA rankings of 181 in singles and 229 in doubles.
Career Okamura made her WTA Tour main-draw debut at the 2014 Japan Women's Open, where she received a wildcard entry into the doubles tournament, partnering with Kotomi Takahata. They defeated Misaki Doi and Elina Svitolina in the first round, but lost to Darija Jurak and Megan Moulton-Levy in the quarterfinals.
Partnering with You Xiaodi, she was runner-up in the doubles at the 2023 Copa Oster, a WTA 125 tournament, losing to Weronika Falkowska and Katarzyna Kawa in the final which went to a deciding champions tiebreak.
Okamura made the main draw at the 2024 Pan Pacific Open as a lucky loser and defeated qualifier Hailey Baptiste, having lost to her in the final qualifying round. Okamura lost to ninth seed Katie Boulter in the second round.
WTA 125 finals Doubles: 1 (runner-up) ResultDateTournamentSurfacePartnerOpponentsScoreLoss Copa Bionaire, Colombia Clay You Xiaodi Weronika Falkowska Katarzyna Kawa 1–6, 7–5, [6–10]
ITF Circuit finals Singles: 14 (4 titles, 10 runner-ups) LegendW75 tournaments (2–2)W25/35 tournaments (2–4)$10,000 tournaments (0–4)Finals by surfaceHard (3–7)Grass (1–0)Carpet (0–3) ResultW–LDateTournamentTierSurfaceOpponentScoreLoss 0–1 May 2014ITF Bangkok, Thailand10,000 Hard Michika Ozeki 4–6, 3–6Loss 0–2 Sep 2014ITF Kyoto, Japan10,000 Hard (i) Nudnida Luangnam 6–7(7), 6–3, 4–6Loss 0–3 Mar 2015ITF Nishitama, Japan10,000 Hard Hsu Ching-wen 3–6, 6–3, 4–6Loss 0–4 Aug 2015ITF Gimcheon, South Korea10,000 Hard Kim Na-ri 0–6, 4–6Loss 0–5 Sep 2015ITF Noto, Japan25,000 Carpet Lee Ya-hsuan 3–6, 6–3, 6–7(10)Loss 0–6 May 2016Fukuoka International, Japan50,000 Carpet Ksenia Lykina 2–6, 7–6(2), 0–6Win 1–6 May 2016Kurume Cup, Japan50,000 Grass Nigina Abduraimova 7–6(10), 1–6, 7–5Loss 1–7 Oct 2019ITF Toowoomba, AustraliaW25 Hard Maddison Inglis 1–6, 6–4, 0–6Loss 1–8 Aug 2022GB Pro-Series Foxhills, UKW25 Hard (i) Joanna Garland 6–3, 1–6, 2–6Win 2–8 Aug 2022ITF Goyang, South KoreaW25 Hard Peangtarn Plipuech 1–6, 6–4, 6–3Loss 2–9 Jul 2024Nakhon Si Thammarat, ThailandW35 Hard Patcharin Cheapchandej 2–6, 3–6Win 3–9 Dec 2024ITF Nonthaburi, ThailandW75 Hard Kathinka von Deichmann 7–5, 1–6, 7–5Win 4–9 Apr 2026ITF Osaka, JapanW35 Hard Hina Inoue 6–4, 6–4Loss 4–10 May 2026Kurume Cup, JapanW75 Carpet Katie Swan 5–7, 1–6
Doubles: 20 (12 titles, 8 runner-ups) LegendW100 tournamentsW60/75 tournaments (1–3)W25/35 tournaments (8–3)W10/15 tournaments (3–2)Finals by surfaceHard (11–4)Clay (1–2)Grass (0–1)Carpet (0–1) ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss 0–1 Sep 2012ITF Antalya, Turkey10,000 Clay Bianca Hîncu Lina Gjorcheska Anastasia Vdovenco 1–6, 6–2, [7–10]Loss 0–2 May 2014ITF Bangkok, Thailand10,000 Hard Hirono Watanabe Varunya Wongteanchai Nungnadda Wannasuk 2–6, 5–7Win 1–2 Sep 2014ITF Kyoto, Japan10,000 Hard (i) Makoto Ninomiya Ayaka Okuno Michika Ozeki 6–3, 6–3Win 2–2 Mar 2015ITF Nishitama, Japan10,000 Hard Akiko Yonemura Kanae Hisami Kotomi Takahata 2–6, 6–2, [10–5]Loss 2–3 Sep 2015ITF Noto, Japan25,000 Carpet Chiaki Okadaue Jang Su-jeong Lee So-ra 3–6, 6–2, [8–10]Win 3–3 Jun 2017ITF Tokyo, Japan25,000 Hard Rika Fujiwara Momoko Kobori Kotomi Takahata 6–2, 6–0Win 4–3 Jun 2017ITF Kōfu, Japan25,000 Hard Rika Fujiwara Hiroko Kuwata Riko Sawayanagi 7–6(4), 6–3Win 5–3 Oct 2017ITF Hamamatsu, Japan25,000 Hard Rika Fujiwara Lu Jiajing Ayaka Okuno 6–2, 6–4Win 6–3 Apr 2018ITF Kashiwa, Japan25,000 Hard Ayaka Okuno Han Na-lae Robu Kajitani 6–2, 6–2Loss 6–4 Nov 2018ITF Muzaffarnagar, India25,000 Grass Michika Ozeki Aldila Sutjiadi Wang Danni 6–7(6), 5–7Win 7–4 Jun 2019Trofeu de Barcelona, SpainW60 Clay Moyuka Uchijima Marina Bassols Ribera Yvonne Cavallé Reimers 7–6(7), 6–4Loss 7–5 Jun 2019Macha Lake Open, Czech RepublicW60+H Clay Dejana Radanović Natela Dzalamidze Nina Stojanović 3–6, 3–6Win 8–5 Jul 2019ITF Ulanqab, ChinaW25 Hard Peangtarn Plipuech Sun Xuliu Wang Meiling 4–6, 7–5, [13–11]Win 9–5 ITF Sharm El Sheikh, EgyptW15 Hard Liang En-shuo Magali Kempen Shalimar Talbi 1–6, 6–4, [10–3]Win 10–5 Apr 2022ITF Chiang Rai, ThailandW25 Hard Peangtarn Plipuech Ma Yexin Xun Fangying 4–6, 6–3, [10–5]Win 11–5 Aug 2022ITF Goyang, South KoreaW25 Hard Peangtarn Plipuech Kim Da-bin Punnin Kovapitukted 6–1, 6–0Loss 11–6 Nov 2023Sydney Challenger, AustraliaW60 Hard Ayano Shimizu Destanee Aiava Maddison Inglis 0–6, 0–6Loss 11–7 Feb 2024Burnie International, AustraliaW75 Hard Ayano Shimizu Paige Hourigan Erin Routliffe 6–7(5), 4–6Loss 11–8 Aug 2025ITF Southaven, United StatesW35 Hard Hiroko Kuwata Catherine Harrison Ashley Lahey 3–6, 2–6Win 12–8 Mar 2026Launceston Tennis International, AustraliaW35 Hard Naho Sato Gabriella Da Silva-Fick Tenika McGiffin 5–7, 7–5, [14–12]
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