Tomohiro Masabayashi leads 2 to 1 over 3 singles meetings since 2023. Last meeting on 31/07/2024 at M25 Taipei.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 31/07/2024 | M25 Taipei | Round 1 | hard | Saitoh | 6-1 6-0 |
| 12/09/2023 | M25 Sapporo | Round 1 | hard | Masabayashi | 7-5 6-3 |
| 06/09/2023 | M25 Sapporo | Round 1 | hard | Masabayashi | 6-4 3-6 6-1 |
| hard | Masabayashi 2 - 1 Saitoh |
| 2024 | Masabayashi 0 - 1 Saitoh |
| 2023 | Masabayashi 2 - 0 Saitoh |
94 wins, 113 losses since 2021 (45.4%).
Last matches: D V D D V
175 wins, 133 losses since 2021 (56.8%).
Last matches: D V D V V
Tomohiro Masabayashi leads 2 to 1 over 3 singles meetings since 2023.
On 31/07/2024, at M25 Taipei (Round 1): Keisuke Saitoh won 6-1 6-0.