Stadium: Court 8 Round: 44 Ground: Hardcourt outdoor
| ITF - M25 Takasaki | 2023/09/17 05:00 | Hayato Matsuoka v Ren Nakamura | 6-1,7-5 |
| ITF - M25 Hongkong - Kwal. | 2023/09/04 02:00 | Collin Altamirano v Ren Nakamura | 6-4,6-1 |
| ITF M25 - Hongkong | 2023/08/28 02:00 | Blake Mott v Ren Nakamura | 6-3,4-6,10-7 |
| ITF M25 - Hongkong | 2023/08/27 02:30 | Ren Nakamura v Rohan Mehra | 6-3,6-3 |
| ITF - M25 Tainan | 2023/08/21 04:05 | Jesse Delaney v Ren Nakamura | 6-2,6-3 |
| ITF - M25 Tainan | 2023/08/20 05:30 | Ian Turner v Ren Nakamura | 1-6,1-6 |
| ITF M15 Jakarta | 2023/06/18 05:00 | Mason Naumovski v Ren Nakamura | 6-3,6-3 |
| ITF M15 Jakarta | 2023/06/11 04:00 | Ren Nakamura v Ying-Ze Chen | 5-7,4-6 |
| ITF - M15 Morelia | 2023/10/18 19:00 | Ryuhei Azuma v Osgar O'Hoisin | 3-6,1-6 |
| ITF - M15 Morelia | 2023/10/17 18:30 | Ryuhei Azuma v Brandon Perez | 7-5,6-4 |
| ITF - M15 Morelia | 2023/10/15 16:00 | Ryuhei Azuma v Wulfrano M M Esdras | 7-5,6-2 |
| ITF M25 Zapopan | 2023/10/11 20:35 | Ernesto Escobedo v Ryuhei Azuma | 6-1,7-5 |
| ITF M25 Zapopan | 2023/10/10 15:55 | Ryuhei Azuma v Emmett Ward | 6-0,6-2 |
| ITF M25 Zapopan | 2023/10/09 17:10 | Gilles Martel v Ryuhei Azuma | 0-6,0-6 |
| ITF M25 Zapopan | 2023/10/08 19:00 | Ricardo Reyna v Ryuhei Azuma | 3-6,2-6 |
| ITF - M25 Takasaki | 2023/09/17 01:00 | Leo Vithoontien v Ryuhei Azuma | 6-1,6-2 |