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Haruka KajiPhoto: Hameltion, CC BY-SA 4.0, via Wikimedia Commons (cropped)

TennisWTARight-handed

Haruka Kaji

JapanAge and results

Haruka Kaji is a tennis player on the WTA Tour who reached a career-high ranking of No. 213 on September 25, 2023.

Updated

2026 record0-0Career highNo. 213Sep 25, 2023

About Haruka Kaji

Haruka Kaji is a tennis player on the WTA Tour. Born on September 25, 1994, in Tsuyama, Okayama, Japan, she plays right-handed with a two-handed backhand. Kaji reached a career-high WTA Tour ranking of No. 213 on September 25, 2023.

Agatha Research DeskUpdated Oct 17, 2026

Match history

Every WTA Tour, Grand Slam and Olympic main-draw match in our records, newest first. A walkover is listed but never counted in a record.

2026: 1-5

DateTournamentRoundOpponentResultScoreSurface
Oct 17Japan OpenQualifying 1st RoundTaylah PrestonL1-3 ret. (ret.)Hard
Sep 28Jingshan Tennis OpenRound 1Emerson JonesL2-6, 4-6Hard
Sep 18Korea OpenQualifying 1st RoundDarya AstakhovaL2-6, 7-6(6), 2-6Hard
Jul 28Odlum Brown VanOpenRound 1Taylah PrestonL0-6, 2-6Hard
May 6Jiangxi OpenRound 2Yao XinxinL4-6, 3-6Hard
May 4Jiangxi OpenRound 1Gao XinyuW7-6(2), 4-1 ret. (ret.)Hard

How she is doing nowThrough Oct 17

2026 record0-0
Last 103-7LLLLLWLWLWNewest first. Five losses in a row.

Career

Honors

  • Asian Games bronze medal, singles, Hangzhou 2022

ITF finals

ITF: 15 singles finals, 7 won; 10 doubles finals, 6 won. From 2015 to 2026.

Singles

  1. L
    Jun 2026Runner-up at ITF Taipei, Taiwan (W35, hard), losing to Back Da-yeon 1-6, 5-7.
  2. W
    Mar 2025Won the title at Kofu International Open, Japan (W50, hard), beating Himeno Sakatsume 7-6(2), 6-3.
  3. L
    Aug 2024Runner-up at ITF Ourense, Spain (W50, hard), losing to Alina Charaeva 6-7(7), 1-6.
  4. L
    Aug 2024Runner-up at ITF Roehampton, United Kingdom (W35, hard), losing to Sonay Kartal 3-6, 1-6.
  5. L
    May 2023Runner-up at ITF Karuizawa, Japan (W25, grass), losing to Wang Yafan 0-6, 1-6.
  6. W
    Oct 2022Won the title at ITF Hamamatsu, Japan (W25, carpet), beating Ikumi Yamazaki 1-1 ret.
  7. W
    Oct 2022Won the title at Noto International, Japan (W25, carpet), beating Momoko Kobori 3-6, 6-3, 6-3.
  8. L
    Sep 2019Runner-up at ITF Kyoto, Japan (W25, indoor hard), losing to Lee Ya-hsuan 3-6, 4-6.
Show 7 more
  1. L
    Aug 2019Runner-up at ITF Tsukuba, Japan (W25, indoor hard), losing to Akiko Omae 6-3, 6-7(5), 3-6.
  2. W
    Dec 2017Won the title at ITF Hong Kong (W15, hard), beating Hiroko Kuwata 4-6, 6-2, 7-6(4).
  3. W
    Aug 2017Won the title at ITF Nonthaburi, Thailand (W15, hard), beating Lee Hua-chen 6-4, 6-1.
  4. L
    Jun 2017Runner-up at ITF Taipei, Taiwan (W15, hard), losing to Lee Pei-chi 6-3, 5-7, 2-6.
  5. W
    Jun 2017Won the title at Kofu Women's Cup, Japan (W25, hard), beating Olivia Tjandramulia 6-1, 6-3.
  6. L
    Oct 2016Runner-up at ITF Tarakan, Indonesia (W10, indoor hard), losing to Kaitlyn Christian 7-5, 3-6, 2-6.
  7. W
    Dec 2015Won the title at ITF Hong Kong, China (W10, hard), beating Tori Kinard 6-1, 3-6, 2-2 ret.

Doubles

  1. L
    Nov 2019Runner-up at Tokyo Open, Japan (W100, hard) with Junri Namigata, losing to Choi Ji-hee and Han Na-lae 3-6, 3-6.
  2. W
    Jul 2019Won the title at Challenger de Granby, Canada (W80, hard) with Junri Namigata, beating Quinn Gleason and Ingrid Neel 7-6(5), 5-7, [10-8].
  3. L
    Jul 2019Runner-up at ITF Saskatoon, Canada (W25, hard) with Momoko Kobori, losing to Hsu Chieh-yu and Marcela Zacarias 3-6, 2-6.
  4. W
    Jun 2019Won the title at ITF Jakarta, Indonesia (W25, hard) with Junri Namigata, beating Beatrice Gumulya and Jessy Rompies 6-2, 4-6, [10-7].
  5. L
    May 2019Runner-up at ITF Nonthaburi, Thailand (W25, hard) with Risa Ozaki, losing to Aleksandrina Naydenova and Ipek Soylu 1-6, 3-6.
  6. W
    Feb 2019Won the title at ITF Jodhpur, India (W25, hard) with Mana Ayukawa, beating Eri Hozumi and Miyabi Inoue 7-6(4), 4-6, [10-5].
  7. W
    Jun 2018Won the title at ITF Singapore (W25, hard) with Akiko Omae, beating Han Na-lae and Lee So-ra 7-5, 6-2.
  8. W
    Jun 2016Won the title at ITF Kaohsiung, Taiwan (W10, hard) with Erina Hayashi, beating Chen Pei-hsuan and Wu Fang-hsien 6-4, 3-6, [10-7].
Show 2 more
  1. L
    Dec 2015Runner-up at ITF Hong Kong, China (W10, hard) with Mana Ayukawa: a walkover to Emma Laine and Yukina Saigo.
  2. W
    Mar 2015Won the title at ITF Kofu, Japan (W10, hard) with Aiko Yoshitomi, beating Rika Fujiwara and Akari Inoue 6-2, 6-3.

Most often against

The players she has met most in our records, with the head-to-head.

Gao Xinyu2 meetings
1-1All square

Last: May 4, 2026, Jiangxi Open Round 1, won

Taylah Preston2 meetings
0-2Kaji trails

Last: Oct 17, 2026, Japan Open Qualifying 1st Round, lost

Sources and updates

Results and schedules come from Agatha's own records of the WTA Tour.

Updated Nov 9, 2026, 7:12 AM ET. Results and form refresh after every match; biography facts are checked weekly.