Level, 1 wins each over 2 singles meetings since 2026. Last meeting on 24/10/2026 at Toray Pan Pacific Open - Tokyo.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 24/10/2026 | Toray Pan Pacific Open - Tokyo | Qualifying 1 | hard | Ishii | 6-4 6-3 |
| 09/04/2026 | W35 Osaka | Round 2 | hard | Okamura | 6-4 6-3 |
| hard | Okamura 1 - 1 Ishii |
| 2026 | Okamura 1 - 1 Ishii |
169 wins, 163 losses since 2021 (50.9%).
Last matches: D V V D D
131 wins, 93 losses since 2021 (58.5%).
Last matches: D D V D V
Level, 1 wins each over 2 singles meetings since 2026.
On 24/10/2026, at Toray Pan Pacific Open - Tokyo (Qualifying 1): Sayaka Ishii won 6-4 6-3.