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 | 5-7 3-6 |
| 06/09/2023 | M25 Sapporo | Round 1 | hard | Masabayashi | 4-6 6-3 1-6 |
| hard | Masabayashi 2 - 1 Saitoh |
| 2024 | Masabayashi 0 - 1 Saitoh |
| 2023 | Masabayashi 2 - 0 Saitoh |
91 wins, 108 losses since 2021 (45.7%).
Last matches: D D V D V
163 wins, 130 losses since 2021 (55.6%).
Last matches: D V V D D
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.