Name: Haruka Kaji
Country: Japan
Birthdate: 25.09.94, 29 years
WTA ranking: 270
TOP ranking's position: 213 (25.09.23, 33700 points)
Points: 273
Prize money: 169914 $
Matches total: 458
Win: 257
%: 56.11 %
Country: Japan
Birthdate: 25.09.94, 29 years
WTA ranking: 270
TOP ranking's position: 213 (25.09.23, 33700 points)
Points: 273
Prize money: 169914 $
Matches total: 458
Win: 257
%: 56.11 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2024 | 10/9 | 8/7 | 0/0 | 0/0 | 2/2 | 0/0 | 0/0 |
| 2023 | 41/28 | 24/19 | 4/2 | 2/2 | 4/3 | 7/2 | 0/0 |
| 2022 | 27/17 | 12/12 | 4/2 | 0/2 | 10/0 | 1/1 | 0/0 |
| 2021 | 8/12 | 6/9 | 2/3 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2020 | 4/3 | 4/2 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2019 | 24/29 | 17/22 | 1/2 | 5/2 | 1/3 | 0/0 | 0/0 |
| 2018 | 24/27 | 20/22 | 0/0 | 0/2 | 4/3 | 0/0 | 0/0 |
| 2017 | 55/20 | 48/16 | 0/0 | 3/1 | 4/3 | 0/0 | 0/0 |
| 2016 | 11/13 | 7/10 | 0/0 | 3/1 | 0/1 | 1/1 | 0/0 |
| 2015 | 18/10 | 13/7 | 2/2 | 0/0 | 3/1 | 0/0 | 0/0 |
| 2014 | 14/16 | 10/11 | 0/0 | 0/0 | 3/2 | 1/3 | 0/0 |
| 2013 | 16/11 | 13/8 | 0/0 | 0/0 | 1/1 | 2/2 | 0/0 |
| 2012 | 5/5 | 0/0 | 0/0 | 0/0 | 3/2 | 2/3 | 0/0 |
| 2011 | 0/1 | 0/0 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 |
| TOTAL | 257/201 | 182/145 | 13/11 | 13/11 | 35/22 | 14/12 | 0/0 |
| perc. % | 56.11 % | 55.66 % | 54.17 % | 54.17 % | 61.4 % | 53.85 % | 0 % |
Haruka Kaji / scheduled / last
| no matches found |
Haruka Kaji form / year 2018 / surface: Hard
Haruka Kaji / year 2018 / surface: Hard
| 18.10.18 | 2nd round | Anhelina Kalinina | Haruka Kaji | 6-1, 6-0 |  | match details |  Suzhou | Hard |
| 17.10.18 | 1st round | Haruka Kaji | Julia Glushko | 3-6, 6-4, 6-3 |  | match details | ||
| 16.10.18 | qual. | Jana Cepelova | Haruka Kaji | 6-2, 6-74, 6-3 | | match details | ||
| 15.10.18 | q 2 | Haruka Kaji | Yue Yuan | 7-66, 4-6, 6-2 | | match details | ||
| 14.10.18 | q 1 | Haruka Kaji | Qiu Yu Ye | 6-3, 7-64 | | match details | ||
| 11.10.18 | 2nd round | Abigail Tere-Apisah | Haruka Kaji | 7-5, 6-3 | | match details |  Toowoomba | Hard |
| 09.10.18 | 1st round | Haruka Kaji | Mai Minokoshi | 1-6, 6-4, 6-3 | | match details | ||
| 04.10.18 | 2nd round | Kimberly Birrell | Haruka Kaji | 6-2, 2-6, 7-65 | | match details | Brisbane | Hard |
| 02.10.18 | 1st round | Haruka Kaji | Mai Minokoshi | 6-3, 2-6, 6-1 | | match details | ||
| 28.09.18 | 1/4 | Naiktha Bains | Haruka Kaji | 6-75, 6-1, 7-65 | | match details | Darwin | Hard |
| 27.09.18 | 2nd round | Haruka Kaji | Ya-Hsuan Lee | 6-3, 6-3 | | match details | ||
| 26.09.18 | 1st round | Haruka Kaji | Kaylah Mcphee | 6-1, 6-1 | | match details | ||
| 21.08.18 | 1st round | Mai Minokoshi | Haruka Kaji | 6-3, 6-2 | | match details |  Tsukuba | Hard |
| 16.08.18 | 2nd round | Meiling Wang | Haruka Kaji | 6-1, 6-4 | | match details | Guiyang | Hard |
| 14.08.18 | 1st round | Haruka Kaji | Hanyu Guo | 6-75, 7-5, 6-1 | | match details | ||
| 08.08.18 | 1st round | Yuxuan Zhang | Haruka Kaji | 6-0, 6-4 | | match details | Jinan | Hard |
| 23.07.18 | 1st round | Arina Rodionova | Haruka Kaji | 6-4, 7-64 | | match details |  Granby | Hard |
| 19.07.18 | 2nd round | Julia Glushko | Haruka Kaji | 6-2, 7-63 | | match details | Gatineau | Hard |
| 17.07.18 | 1st round | Haruka Kaji | Ariana Arseneault | 6-1, 6-3 | | match details | ||
| 10.07.18 | 1st round | Nagi Hanatani | Haruka Kaji | 6-4, 6-1 | | match details |  Honolulu | Hard |
| 21.06.18 | 2nd round | Na-Ri Kim | Haruka Kaji | 6-4, 3-6, 6-4 | | match details |  Daegu | Hard |
| 20.06.18 | 1st round | Haruka Kaji | Kanako Morisaki | 7-5, 6-3 | | match details | ||
| 15.06.18 | 1/2 | Risa Ozaki | Haruka Kaji | 2-6, 6-0, 6-4 | | match details |  Singapore | Hard |
| 14.06.18 | 1/4 | Haruka Kaji | Hiroko Kuwata | 6-3, 6-4 | | match details | ||
| 13.06.18 | 2nd round | Haruka Kaji | Nastja Kolar | 3-6, 6-3, 6-4 | | match details | ||
| 12.06.18 | 1st round | Haruka Kaji | Nagi Hanatani | 6-0, 6-4 | | match details | ||
| 08.06.18 | 1/2 | Jovana Jovic | Haruka Kaji | 6-3, 6-0 | | match details | Singapore | Hard |
| 07.06.18 | 1/4 | Haruka Kaji | Priscilla Heise | 6-1, 6-4 | | match details | ||
| 06.06.18 | 2nd round | Haruka Kaji | Yuuki Tanaka | 6-74, 6-4, 6-1 | | match details | ||
| 05.06.18 | 1st round | Haruka Kaji | Akiko Omae | 5-7, 5-0, Akiko Omae - retired | | match details | ||
| 01.05.18 | 1st round | Ling Zhang | Haruka Kaji | 6-2, 6-4 | | match details | Gifu | Hard |
| 25.04.18 | 2nd round | Xinyun Han | Haruka Kaji | 6-4, 3-6, 6-3 | | match details | Quanzhou | Hard |
| 23.04.18 | 1st round | Haruka Kaji | Fang Ying Xun | 6-3, 6-0 | | match details | ||
| 12.04.18 | 2nd round | Junri Namigata | Haruka Kaji | 6-75, 6-3, 6-4 | | match details | Osaka | Hard |
| 10.04.18 | 1st round | Haruka Kaji | Ryoko Ikeda | 6-3, 6-3 | | match details | ||
| 02.04.18 | qual. | Alina Silich | Haruka Kaji | 6-2, 7-5 | | match details | Kashiwa | Hard |
| 01.04.18 | q 1 | Haruka Kaji | Ange Oby Kajuru | 6-4, 6-0 | | match details | ||
| 27.03.18 | 1st round | Fangzhou Liu | Haruka Kaji | 6-3, 6-2 | | match details | Kofu | Hard |
| 13.03.18 | 1st round | Dejana Radanovic | Haruka Kaji | 6-3, 7-5 | | match details | Toyota | Hard |
| 06.03.18 | 1st round | Veronika Kudermetova | Haruka Kaji | 6-3, 6-2 | | match details | Yokohama | Hard |
| 03.01.18 | 2nd round | Kwan Yau Ng | Haruka Kaji | 6-2, 6-3 | | match details |  Hong Kong | Hard |
| 02.01.18 | 1st round | Haruka Kaji | Lulu Sun | 7-5, 6-3 | | match details |
