| UTR Pro Miki | 2023/02/09 03:30 | Ren Nakamura v Ryotaro Taguchi | 4-6,5-7 |
| UTR Pro Miki | 2023/04/12 06:23 | Yudai Umeoka v Ren Nakamura | 3-6,1-6 |
| UTR Pro Miki | 2023/04/11 05:00 | Brody Nejedly v Ren Nakamura | 1-6,2-6 |
| ITF M25 Montreal | 2023/03/13 13:55 | Jesse Flores v Ren Nakamura | 6-2,6-1 |
| ITF M25 Montreal | 2023/03/07 17:10 | Drew Van Orderlain v Ren Nakamura | 7-6,7-5 |
| ITF M25 Montreal | 2023/03/06 19:30 | Ren Nakamura v Sid Donarski | 7-6,6-1 |
| UTR Pro Miki | 2023/02/10 04:30 | Ren Nakamura v Seita Watanabe | 5-7,2-6 |
| UTR Pro Miki | 2023/02/09 03:30 | Ren Nakamura v Ryotaro Taguchi | 4-6,5-7 |
| UTR Pro Miki | 2023/02/07 06:30 | Ryohei Takase v Ren Nakamura | 1-6,1-6 |
| UTR Pro Miki | 2023/04/11 03:30 | Yudai Umeoka v Ryotaro Taguchi | 2-6,1-6 |
| UTR Pro Miki | 2023/04/10 04:00 | Ryotaro Taguchi v Yuto Oki | 6-1,6-1 |
| ITF M25 Kashiwa | 2023/04/05 03:15 | Ryotaro Taguchi v Daisuke Sumizawa | 6-7,7-6,6-7 |
| ITF M25 Kashiwa | 2023/04/03 04:00 | Ryotaro Taguchi v Asahi Harazaki | 6-4,7-6 |
| ITF M25 Kashiwa | 2023/04/02 04:00 | Maximus Jones v Ryotaro Taguchi | 6-7,5-7 |
| ITF M25 Tsukuba | 2023/03/30 00:55 | Yu Hsiou Hsu v Ryotaro Taguchi | 6-1,6-4 |
| ITF M25 Tsukuba | 2023/03/29 00:30 | Koki Matsuda v Ryotaro Taguchi | 6-3,2-6,2-6 |
| ITF M25 Tsukuba | 2023/03/27 05:00 | Ryotaro Taguchi v Issei Okamura | 7-5,6-2 |