is a Japanese professional tennis player. She has career-high WTA rankings of 213 in singles, achieved on 25 September 2023, and No. 131 in doubles, set on 3 February 2020. Career Kaji won her biggest ITF title to date at the 2019 Challenger de Granby, in the doubles tournament, partnering Ingrid Neel.
ITF Circuit finals Singles: 15 (7 titles, 8 runner-ups) LegendW50 tournamentsW25/35 tournamentsW10/15 tournamentsFinals by surfaceHard (5–7)Grass (0–1)Carpet (2–0) ResultW–LDateTournamentTierSurfaceOpponentScoreWin 1–0 Dec 2015ITF Hong Kong, ChinaW10 Hard Tori Kinard 6–1, 3–6, 2–2 ret.Loss 1–1 Oct 2016ITF Tarakan, IndonesiaW10 Hard (i) Kaitlyn Christian 7–5, 3–6, 2–6Win 2–1 Jun 2017Kofu Women's Cup, JapanW25 Hard Olivia Tjandramulia 6–1, 6–3Loss 2–2 Jun 2017ITF Taipei, TaiwanW15 Hard Lee Pei-chi 6–3, 5–7, 2–6Win 3–2 Aug 2017ITF Nonthaburi, ThailandW15 Hard Lee Hua-chen 6–4, 6–1Win 4–2 Dec 2017ITF Hong KongW15 Hard Hiroko Kuwata 4–6, 6–2, 7–6(4)Loss 4–3 Aug 2019ITF Tsukuba, JapanW25 Hard (i) Akiko Omae 6–3, 6–7(5), 3–6Loss 4–4 Sep 2019ITF Kyoto, JapanW25 Hard (i) Lee Ya-hsuan 3–6, 4–6Win 5–4 Oct 2022Noto International, Japan W25 Carpet Momoko Kobori 3–6, 6–3, 6–3Win 6–4 Oct 2022ITF Hamamatsu, JapanW25 Carpet Ikumi Yamazaki 1–1 ret.Loss 6–5 May 2023ITF Karuizawa, JapanW25 Grass Wang Yafan 0–6, 1–6Loss 6–6 Aug 2024ITF Roehampton, United KingdomW35 Hard Sonay Kartal 3–6, 1–6Loss 6–7 Aug 2024 ITF Ourense, SpainW50 Hard Alina Charaeva 6–7(7), 1–6Win 7–7 Mar 2025Kōfu International Open, JapanW50 Hard Himeno Sakatsume 7–6(2), 6–3Loss 7–8 Jun 2026ITF Taipei, TaiwanW35 Hard Back Da-yeon 1–6, 5–7
Doubles: 10 (6 titles, 4 runner-ups) LegendW100 tournamentsW80 tournamentsW25 tournamentsW10 tournamentsFinals by surfaceHard (6–4) ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreWin 1–0 Mar 2015ITF Kofu, JapanW10 Hard Aiko Yoshitomi Rika Fujiwara Akari Inoue 6–2, 6–3Loss 1–1 Dec 2015ITF Hong Kong, ChinaW10 Hard Mana Ayukawa Emma Laine Yukina Saigo w/oWin 2–1 Jun 2016ITF Kaohsiung, TaiwanW10 Hard Erina Hayashi Chen Pei-hsuan Wu Fang-hsien 6–4, 3–6, [10–7]Win 3–1 Jun 2018ITF SingaporeW25 Hard Akiko Omae Han Na-lae Lee So-ra 7–5, 6–2Win 4–1 Feb 2019ITF Jodhpur, IndiaW25 Hard Mana Ayukawa Eri Hozumi Miyabi Inoue 7–6(4), 4–6, [10–5]Loss 4–2 May 2019ITF Nonthaburi, ThailandW25 Hard Risa Ozaki Aleksandrina Naydenova İpek Soylu 1–6, 3–6Win 5–2 Jun 2019ITF Jakarta, IndonesiaW25 Hard Junri Namigata Beatrice Gumulya Jessy Rompies 6–2, 4–6, [10–7]Loss 5–3 Jul 2019ITF Saskatoon, CanadaW25 Hard Momoko Kobori Hsu Chieh-yu Marcela Zacarías 3–6, 2–6Win 6–3 Jul 2019Challenger de Granby, CanadaW80 Hard Junri Namigata Quinn Gleason Ingrid Neel 7–6(5), 5–7, [10–8]Loss 6–4 Nov 2019Tokyo Open, JapanW100 Hard Junri Namigata Choi Ji-hee Han Na-lae 3–6, 3–6
References
External links