Stadium: Green Tennis Plaza - Court 04 Round: 28 Ground: Hardcourt outdoor
Referee:
| 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 | 2024/10/15 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 |
| ITF M25 Sapporo | 2024/09/09 03:30 | Shunsuke Nakagawa v Seiya Nakanishi | 6-2,6-2 |
| UTR Pro Miki | 2023/04/23 03:30 | Yuto Okuchi v Hikaru Takahashi | 4-6,6-4,5-6 |
| UTR Pro Miki | 2023/04/21 00:30 | Brody Nejedly v Hikaru Takahashi | 3-6,6-3,5-7 |
| UTR Pro Miki | 2023/04/20 06:00 | Kento Tagashira v Hikaru Takahashi | 1-6,3-6 |
| UTR Pro Miki | 2023/04/18 03:30 | Mizuki Kawada v Hikaru Takahashi | 6-7,4-6 |
| UTR Pro Miki | 2023/04/17 02:00 | Hikaru Takahashi v Ryotaro Taguchi | 5-7,2-6 |