Ayumi Koshiishi leads 2 to 1 over 3 singles meetings since 2024. Last meeting on 03/09/2025 at W35 Nakhon Pathom.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 03/09/2025 | W35 Nakhon Pathom | Round 1 | hard | Koshiishi | 4-6 2-6 |
| 14/05/2025 | W35 Changwon | Round 1 | hard | Koshiishi | 6-2 6-2 |
| 21/07/2024 | W15 Nakhon Si Thammarat | Final | hard | Sato | 6-4 6-4 |
| hard | Koshiishi 2 - 1 Sato |
| 2025 | Koshiishi 2 - 0 Sato |
| 2024 | Koshiishi 0 - 1 Sato |
181 wins, 97 losses since 2021 (65.1%).
Last matches: D V D V V
124 wins, 84 losses since 2021 (59.6%).
Last matches: D V D V D
Ayumi Koshiishi leads 2 to 1 over 3 singles meetings since 2024.
On 03/09/2025, at W35 Nakhon Pathom (Round 1): Ayumi Koshiishi won 4-6 2-6.