| UTR Pro Kawaguchi | 03/09 00:00 | - | Rei Sato v Christopher Kosei Ono | 3-6,7-6,6-7 | |
| UTR Pro Kawaguchi | 03/08 05:00 | - | So Hanatani v Rei Sato | 0-6,2-6 | |
| UTR Pro Kawaguchi | 03/07 03:08 | - | Ryoto Tachi v Rei Sato | 6-1,6-4 | |
| UTR Pro Kawaguchi | 03/05 00:00 | - | Ryotaro Matsumura v Rei Sato | 6-0,6-0 | |
| UTR Pro Kawaguchi | 03/04 05:00 | - | Yuya Hirose v Rei Sato | 4-6,2-6 |