Buenos Aires 
Nottingham 1 
Bengalaru 
Glasgow 
Nonthaburi 1 
Davis Сup Group I Tennis. Played Kaji Haruka. Season 2025
Country 
Japan. Ranking WTA 252.
Japan. Ranking WTA 252. WTA - Jinan | ||||
|---|---|---|---|---|
| 15.10.2025 | Second round | Kaji Haruka — Gao Xinyu | 0:2 (3:6, 3:6) |
|
 WTA - Valencia | ||||
| 10.06.2025 | First round | Carle Maria Lourdes — Kaji Haruka | 2:0 (6:1, 6:2) |
|
 WTA - Bari | ||||
| 03.06.2025 | First round | Bondar Anna — Kaji Haruka | 2:0 (6:1, 6:2) |
|
 WTA - French Open | ||||
| 19.05.2025 | Qualifications - 1st round | Rouvroy Margaux — Kaji Haruka | 2:1 (6:7, 7:5, 7:6) |
|
| W100 Gifu | ||||
| 30.04.2025 | First round | Liang En Shuo — Kaji Haruka | 2:1 (5:7, 6:4, 6:3) |
|
| W100 Tokyo | ||||
| 24.04.2025 | Second round | Marino Rebecca — Kaji Haruka | 2:0 (6:3, 6:4) |
|
| 23.04.2025 | First round | Kaji Haruka — Ma Yexin | 2:0 (6:2, 6:3) |
|
 ATP - The Dubai Tennis Championships | ||||
| 26.08.2025 | First round | Kubka Martyna — Kaji Haruka | 2:1 (6:2, 3:6, 7:6) |
|
 WTA - Moorilla Hobart International | ||||
| 04.01.2025 | Qualifications - 1st round | Zarazua Renata — Kaji Haruka | 2:0 (6:1, 7:6) |
|
 WTA - ASB Classic | ||||
| 28.12.2024 | Qualifications - 1st round | Stefanini Lucrezia — Kaji Haruka | 2:0 (6:1, 6:3) |
|