Ground: Hardcourt outdoor
| ITF M15 Wuning | 2025/08/06 10:00 | Chun-Chien Hou v Ryota Tanuma | 2-6,6-4,6-2 |
| ITF M15 Tokyo | 2025/07/10 03:43 | Ryota Tanuma v Shintaro Imai | 6-3,6-7,6-7 |
| ITF M15 Tokyo | 2025/07/09 01:00 | Ryota Tanuma v Shunsuke Nakagawa | 7-6,6-3 |
| ITF M15 Tokyo | 2025/07/08 02:30 | Ryota Tanuma v Noritaka Koizumi | 6-3,7-6 |
| ITF M15 Tokyo | 2025/07/04 03:12 | Ryota Tanuma v Hikaru Shiraishi | 7-6,4-6,2-6 |
| ITF M15 Tokyo | 2025/07/03 01:00 | Noritaka Koizumi v Ryota Tanuma | 4-6,1-6 |
| ITF M15 Tokyo | 2025/07/02 01:00 | Tomohiro Masabayashi v Ryota Tanuma | 2-6,1-4 |
| ITF M15 Tokyo | 2025/07/01 01:00 | Ryota Tanuma v Riku Takahata | 6-2,6-1 |