Level, 1 wins each over 2 singles meetings since 2023. Last meeting on 15/05/2024 at W75 Kurume.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 15/05/2024 | W75 Kurume | Round 1 | carpet | Yamaguchi | 6-0 6-4 |
| 31/05/2023 | W25 Tokyo | Round 1 | hard | Kaji | 7-6(4) 6-0 |
| carpet | Kaji 0 - 1 Yamaguchi |
| hard | Kaji 1 - 0 Yamaguchi |
| 2024 | Kaji 0 - 1 Yamaguchi |
| 2023 | Kaji 1 - 0 Yamaguchi |
168 wins, 139 losses since 2021 (54.7%).
Last matches: D D V D V
164 wins, 135 losses since 2021 (54.8%).
Last matches: D D V D D
Level, 1 wins each over 2 singles meetings since 2023.
On 15/05/2024, at W75 Kurume (Round 1): Mei Yamaguchi won 6-0 6-4.