Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Takasaki | 2023/09/20 04:20 | Jumpei Yamasaki v Sora Fukuda | 1-6,6-2,4-6 |
| ITF M25 Sapporo | 2023/09/15 03:30 | Shuichi Sekiguchi v Jumpei Yamasaki | 6-3,7-5 |
| ITF M25 Sapporo | 2023/09/08 02:30 | Shuichi Sekiguchi v Jumpei Yamasaki | 6-4,6-3 |
| ITF M25 Sapporo | 2023/09/05 02:00 | Jumpei Yamasaki v Kousuke Ogura | 6-4,6-4 |
| ITF M25 Jakarta | 2023/08/15 04:20 | Sora Fukuda v Jumpei Yamasaki | 7-5,6-4 |
| ITF M25 Jakarta | 2023/08/08 02:30 | Jeamoon Lee v Jumpei Yamasaki | 6-0,7-5 |
| ITF M25 Daegu | 2023/06/09 02:55 | Jumpei Yamasaki v Dominik Palan | 4-6,2-6 |
| ITF M25 Daegu | 2023/06/06 03:10 | Duckhee Lee v Jumpei Yamasaki | 1-6,6-4,4-6 |