Kokoro Isomura leads 2 to 1 over 3 singles meetings since 2025. Last meeting on 11/07/2025 at M15 Tokyo.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 11/07/2025 | M15 Tokyo | Quarter-final | hard | Isomura | 3-6 6-4 4-6 |
| 27/06/2025 | M15 Maanshan | Quarter-final | indoor hard | Sinclair | 3-6 7-6(6) 3-6 |
| 27/01/2025 | Brisbane 1 Challenger | Qualifiers | hard | Isomura | 6-4 6-4 |
| hard | Sinclair 0 - 2 Isomura |
| indoor hard | Sinclair 1 - 0 Isomura |
| 2025 | Sinclair 1 - 2 Isomura |
195 wins, 143 losses since 2021 (57.7%).
Last matches: D D V D V
151 wins, 134 losses since 2021 (53.0%).
Last matches: V D D D D
Kokoro Isomura leads 2 to 1 over 3 singles meetings since 2025.
On 11/07/2025, at M15 Tokyo (Quarter-final): Kokoro Isomura won 3-6 6-4 4-6.