Haruka Kaji leads 4 to 0 over 4 singles meetings since 2022. Last meeting on 08/08/2024 at W35 Roehampton.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 08/08/2024 | W35 Roehampton | Round 2 | hard | Kaji | 2-6 6-2 6-1 |
| 27/03/2024 | W50 Kofu | Round 1 | hard | Kaji | 7-6(3) 6-2 |
| 21/11/2023 | W100 Takasaki | Qualifiers | hard | Kaji | 6-3 6-7(4) 6-3 |
| 01/10/2022 | W25 Nanao | Semi-final | carpet | Kaji | 6-4 3-6 4-6 |
| hard | Kaji 3 - 0 Saigo |
| carpet | Kaji 1 - 0 Saigo |
| 2024 | Kaji 2 - 0 Saigo |
| 2023 | Kaji 1 - 0 Saigo |
| 2022 | Kaji 1 - 0 Saigo |
170 wins, 142 losses since 2021 (54.5%).
Last matches: D D V V D
192 wins, 156 losses since 2021 (55.2%).
Last matches: D V D D D
Haruka Kaji leads 4 to 0 over 4 singles meetings since 2022.
On 08/08/2024, at W35 Roehampton (Round 2): Haruka Kaji won 2-6 6-2 6-1.