Level, 2 wins each over 4 singles meetings since 2022. Last meeting on 17/06/2026 at M15 Tokyo.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 17/06/2026 | M15 Tokyo | Round 1 | hard | Kumasaka | 6-4 4-6 5-4 |
| 14/03/2024 | M15 Hinode | Round 2 | hard | Mochizuki | 2-6 2-6 |
| 09/06/2023 | M25 Daegu | Quarter-final | hard | Kumasaka | |
| 30/10/2022 | Yokohama Challenger | Qualifying 1 | hard | Mochizuki | 6-3 5-0 |
| hard | Mochizuki 2 - 2 Kumasaka |
| 2026 | Mochizuki 0 - 1 Kumasaka |
| 2024 | Mochizuki 1 - 0 Kumasaka |
| 2023 | Mochizuki 0 - 1 Kumasaka |
| 2022 | Mochizuki 1 - 0 Kumasaka |
145 wins, 119 losses since 2021 (54.9%).
Last matches: D V D V V
162 wins, 110 losses since 2021 (59.6%).
Last matches: D V V V V
Level, 2 wins each over 4 singles meetings since 2022.
On 17/06/2026, at M15 Tokyo (Round 1): Takuya Kumasaka won 6-4 4-6 5-4.