Level, 1 wins each over 2 singles meetings since 2024. Last meeting on 28/10/2025 at Seoul Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 28/10/2025 | Seoul Challenger | Round 1 | hard | Isomura | 5-2 |
| 08/11/2024 | Matsuyama Challenger | Quarter-final | hard | Watanuki | 0-6 5-7 |
| hard | Watanuki 1 - 1 Isomura |
| 2025 | Watanuki 0 - 1 Isomura |
| 2024 | Watanuki 1 - 0 Isomura |
156 wins, 112 losses since 2021 (58.2%).
Last matches: V V D V V
150 wins, 134 losses since 2021 (52.8%).
Last matches: D D D D V
Level, 1 wins each over 2 singles meetings since 2024.
On 28/10/2025, at Seoul Challenger (Round 1): Kokoro Isomura won 5-2.