is an inactive Japanese tennis player. She has career-high WTA rankings of 322 in singles, achieved on 24 February 2020, and No. 210 in doubles, reached on 16 March 2020. She has won one singles title and eleven doubles titles on the ITF Women's Circuit.
Career Hayashi made her main-draw debut on the WTA Tour at the 2017 Japan Women's Open, where she received a wildcard alongside Momoko Kobori for the doubles competition.
ITF Circuit finals Singles: 2 (1 title, 1 runner-up) Legend$25,000 tournaments$10,000 tournaments ResultW–LDateTournamentTierSurfaceOpponentScoreLoss 0–1 Jun 2016ITF Kaohsiung, Taiwan10,000 Hard Zhang Ying 0–6, 6–7(5)Win 1–1 Jun 2019ITF Hong Kong25,000 Hard Lu Jiajing 6–3, 3–0 ret.
Doubles: 29 (11 titles, 18 runner-ups) LegendW60/75 tournamentsW40/50 tournamentsW25/35 tournamentsW10/15 tournaments ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreWin 1–0 Apr 2016 Kōfu International Open, Japan 25,000 Hard Shuko Aoyama Kanae Hisami Kotomi Takahata 7–5, 7–5Win 2–0 Jun 2016 ITF Kaohsiung, Taiwan 10,000 Hard Haruka Kaji Chen Pei-hsuan Wu Fang-hsien 6–4, 3–6, [10–7]Loss 2–1 Apr 2017 Kōfu International Open, Japan 25,000 Hard Robu Kajitani Han Na-lae Luksika Kumkhum 3–6, 0–6Loss 2–2 May 2017 Fukuoka International, Japan 60,000 Carpet Robu Kajitani Junri Namigata Kotomi Takahata 0–6, 7–6(3), [7–10]Loss 2–3 May 2017 Kurume Cup, Japan 60,000 Carpet Robu Kajitani Katy Dunne Tammi Patterson 6–7(3), 6–2, [4–10]Win 3–3 Feb 2018ITF Palma Nova, Spain15,000 Clay Chisa Hosonuma Yukina Saigo Aiko Yoshitomi 7–5, 7–5Loss 3–4 Mar 2018Kōfu International Open, Japan25,000 Hard Momoko Kobori Gao Xinyu Luksika Kumkhum 0–6, 6–2, [4–10]Win 4–4 Sep 2018ITF Yeongwol, Korea15,000 Hard Chisa Hosonuma Hanna Chang Zhang Ying 6–1, 6–1Win 5–4 Oct 2018ITF Hamamatsu, Japan25,000 Carpet Miharu Imanishi Momoko Kobori Ayano Shimizu 7–5, 6–4Loss 5–5 May 2019 Kurume Cup, Japan 60,000 Carpet Moyuka Uchijima Hiroko Kuwata Ena Shibahara 6–0, 4–6, [5–10]Loss 5–6 May 2019ITF Karuizawa, Japan25,000 Carpet Momoko Kobori Naomi Broady Ayaka Okuno 3–6, 6–2, [7–10]Loss 5–7 Jun 2019ITF Hong Kong, China SAR25,000 Hard Momoko Kobori Junri Namigata Abigail Tere-Apisah 3–6, 6–2, [6–10]Loss 5–8 Aug 2019ITF Nanao, Japan25,000 Carpet Miharu Imanishi Kanako Morisaki Minori Yonehara 1–6, 3–6Loss 5–9 Oct 2019ITF Makinohara, Japan25,000 Carpet Momoko Kobori Eudice Chong Aldila Sutjiadi 7–6(5), 6–7(5), [4–10]Win 6–9 Feb 2020 All Japan Indoor Championships 60,000 Hard (i) Moyuka Uchijima Hsieh Yu-chieh Minori Yonehara 7–5, 5–7, [10–6]Loss 6–10 Mar 2020ITF Yokohama, Japan25,000 Hard Kanako Morisaki Robu Kajitani Naho Sato 6–1, 4–6, [8–10]Loss 6–11 May 2021ITF Naples, United States25,000 Clay Kanako Morisaki Ulrikke Eikeri Catherine Harrison 2–6, 6–3, [2–10]Loss 6–12 May 2021ITF Pelham, United States25,000 Clay Kanako Morisaki Fernanda Contreras Marcela Zacarías 0–6, 3–6Win 7–12 Jun 2021ITF Santo Domingo, Dominican Republic25,000 Hard Kanako Morisaki Emina Bektas Quinn Gleason 6–7(3), 6–1, [10–7]Win 8–12 Aug 2022 Verbier Open, Switzerland W25 Clay Kanako Morisaki Michaela Bayerlová Nicole Fossa Huergo 6–2, 6–1Loss 8–13 Oct 2022 ITF Hamamatsu, Japan W25 Carpet Kanako Morisaki Haruna Arakawa Aoi Ito 1–6, 6–7(6)Win 9–13 Jan 2023 ITF Bhopal, India W40 Hard Saki Imamura Ekaterina Makarova Ekaterina Reyngold 6–3, 7–6(3)Win 10–13 Mar 2023 Clay Court International, Australia W60 Clay Yuki Naito Destanee Aiava Olivia Gadecki 7–6(2), 7–5Loss 10–14 Apr 2023ITF Fukui, JapanW15 Hard Kisa Yoshioka Li Yu-yun Rinon Okuwaki 6–3, 4–6, [8–10]Loss 10–15 Aug 2023ITF Aldershot, UKW25 Hard Saki Imamura Destanee Aiava Sarah Beth Grey 4–6, 3–6Loss 10–16 Mar 2024ITF Hinode, JapanW15 Hard Kanako Morisaki Shiori Tominaga Hikaru Yoshikawa 3–6, 6–0, [7–10]Win 11–16 Mar 2024 Kōfu International Open, Japan W50 Hard Saki Imamura Rutuja Bhosale Ankita Raina 6–3, 7–5Loss 11–17 Sep 2024 ITF Perth, Australia W75 Hard Saki Imamura Talia Gibson Maddison Inglis 2–6, 4–6Loss 11–18 Nov 2024 Gold Coast International, Australia W75 Hard Kanako Morisaki Hikaru Sato Eri Shimizu 7–6(0), 3–6, [6–10]
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