Stadium: Green Tennis Plaza - Court 04 Ground: Hardcourt outdoor
Referee:
| UTR Pro Yokohama | 2025/02/09 02:15 | Seiya Nakanishi v Taiyo Sato | 3-6,4-6 |
| UTR Pro Yokohama | 2025/02/07 01:00 | Kairi Inoue v Seiya Nakanishi | 6-3,6-3 |
| UTR Pro Yokohama | 2025/02/06 01:00 | Koki Matsuda v Seiya Nakanishi | 6-4,2-6,6-2 |
| UTR Pro Yokohama | 2025/02/05 01:00 | Yuta Tomida v Seiya Nakanishi | 3-6,6-3,7-5 |
| UTR Pro Yokohama | 2025/02/03 01:00 | Kazuki Sugimoto v Seiya Nakanishi | 6-4,1-6,6-4 |
| UTR Pro Noda | 2025/01/19 04:10 | Seiya Nakanishi v Abhishek Bastola | 6-4,6-4 |
| UTR Pro Noda | 2025/01/18 02:15 | Seiya Nakanishi v Mao Takada | 6-0,6-2 |
| UTR Pro Noda | 2025/01/17 00:30 | Andras Necz v Seiya Nakanishi | 6-7,6-3,4-6 |