Stadium: Green Tennis Plaza - Court 03 Round: 29 Ground: Hardcourt outdoor
Referee:
| UTR Pro Yokohama | 2024/12/01 00:00 | Tokitaka Ito v Seiya Nakanishi | 6-2,6-6 |
| UTR Pro Yokohama | 2024/11/30 03:00 | Kairi Inoue v Seiya Nakanishi | 3-6,6-7 |
| UTR Pro Yokohama | 2024/11/29 00:00 | Seiya Nakanishi v Kai Kawano | 6-7,3-6 |
| UTR Pro Yokohama | 2024/11/28 02:21 | Seiya Nakanishi v Koki Matsuda | 4-6,0-6 |
| UTR Pro Yokohama | 2024/11/27 09:00 | Henry Ren v Seiya Nakanishi | 6-1,7-6 |
| UTR Pro Yokohama | 2024/11/26 01:30 | Hakuto Imanishi v Seiya Nakanishi | 7-5,6-4 |
| 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 |
| ITF M15 Kashiwa | 2024/03/31 01:00 | Kenta Nakamura v Naoki Tajima | 2-6,2-6 |
| ITF M15 Hinode | 2024/03/10 05:00 | Kenta Nakamura v Ryoto Tachi | 1-6,2-6 |
| ITF M25 Gold Coast | 2023/11/26 00:00 | Kenta Nakamura v Andre Szilvassy | 2-6,1-6 |
| ITF M25 Brisbane | 2023/11/19 00:00 | Stefan Bianchet v Kenta Nakamura | 7-6,6-2 |
| ITF M25 Sapporo | 2023/09/10 01:00 | Kenta Nakamura v Shunsuke Nakagawa | 4-6,2-6 |
| ITF M25 Sapporo | 2023/09/03 03:00 | Ryusuke Horiuchi v Kenta Nakamura | 6-3,6-1 |
| ITF M15 Caloundra | 2023/07/30 00:00 | Timmy Karpinski v Kenta Nakamura | 6-4,6-2 |
| ITF M15 Caloundra | 2023/07/22 23:00 | Anton Shepp v Kenta Nakamura | 6-3,7-5 |