Ground: Hardcourt outdoor
| UTR Pro Yokohama | 2024/11/25 01:30 | Henry Ren v Hakuto Imanishi | 6-3,6-4 |
| ITF M15 Tanagura | 2024/10/23 00:30 | Yuta Kikuchi v Seiya Nakanishi | 6-1,6-4 |
| UTR Pro Urayasu | 2024/10/20 00:00 | Seiya Nakanishi v Ryusuke Horiuchi | 0-6,0-6 |
| UTR Pro Urayasu | 2024/10/19 03:10 | Seiya Nakanishi v Taiyo Sato | 4-6,6-3,6-4 |
| UTR Pro Urayasu | 2024/10/17 00:00 | Seiya Nakanishi v Kazuma Kimura | 4-6,6-4,6-3 |
| UTR Pro Urayasu | 2024/10/16 03:30 | Seiya Nakanishi v Ryota Tanuma | 0-0 |
| UTR Pro Urayasu | 2024/10/15 00:00 | Seiya Nakanishi v Koki Takada | 1-6,0-6 |
| UTR Pro Urayasu | 2024/10/14 00:00 | Seiya Nakanishi v Joel Braund | 6-4,6-7,3-6 |
| ITF M25 Takasaki | 2024/09/15 01:00 | Seiya Nakanishi v Noritaka Koizumi | 5-7,4-6 |