Haruka Kaji leads 2 to 0 over 2 singles meetings since 2025. Last meeting on 02/09/2026 at W75 Tianjin.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 02/09/2026 | W75 Tianjin | Round 1 | hard | Kaji | 7-5 5-1 |
| 13/10/2025 | WTA 125 Jinan Open - Jinan | Round 1 | hard | Kaji | 4-6 6-2 7-5 |
| hard | Kaji 2 - 0 Ren |
| 2026 | Kaji 1 - 0 Ren |
| 2025 | Kaji 1 - 0 Ren |
170 wins, 142 losses since 2021 (54.5%).
Last matches: D D V V D
136 wins, 83 losses since 2021 (62.1%).
Last matches: D D D V V
Haruka Kaji leads 2 to 0 over 2 singles meetings since 2025.
On 02/09/2026, at W75 Tianjin (Round 1): Haruka Kaji won 7-5 5-1.