Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Albury | 2019/02/26 23:30 | Rio Noguchi v Ren Nakamura | 6-1,6-1 |
| ITF M25 Quinta Do Lago | 2021/10/20 08:55 | Sebastian Fanselow v Rio Noguchi | 6-3,7-6 |
| ITF M25 Pretoria | 2021/10/03 09:30 | Rio Noguchi v Filip Peliwo | 6-3,7-5 |
| ITF M25 Pretoria | 2021/10/02 11:30 | Khololwam Montsi v Rio Noguchi | 5-7,2-6 |
| ITF M25 Pretoria | 2021/10/01 13:50 | Rio Noguchi v Alastair Gray | 6-3,7-6 |
| ITF M25 Pretoria | 2021/09/30 07:25 | Rio Noguchi v Francesco Vilardo | 6-2,6-4 |
| ITF M25 Johannesburg | 2021/09/24 10:05 | Rio Noguchi v Michail Pervolarakis | 4-6,2-6 |
| ITF M25 Johannesburg | 2021/09/23 07:00 | Rio Noguchi v Vaughn Hunter | 6-4,4-6,6-3 |
| ITF M25 Johannesburg | 2021/09/21 10:25 | Rio Noguchi v Ryan Nijboer | 7-6,2-6,6-3 |
| ITF M15 Monastir | 2021/08/23 08:00 | Ren Nakamura v Rishi Reddy | 4-6,1-6 |
| ITF M15 Monastir | 2021/08/22 09:00 | Ren Nakamura v Dheeraj Kodancha Srinivasan | 6-4,7-5 |
| ITF M15 Monastir | 2021/08/15 11:00 | Matthew Dellavedova v Ren Nakamura | 6-1,6-4 |
| ITF M15 Monastir | 2021/08/08 08:30 | Ren Nakamura v Adil Kalyanpur | 1-6,2-6 |
| ITF M15 Monastir | 2021/06/07 12:30 | Ko Suzuki v Ren Nakamura | 6-4,6-1 |
| ITF M15 Monastir | 2021/06/07 08:00 | Lucas Cotler v Ren Nakamura | 2-6,3-6 |
| ITF M15 Monastir | 2021/06/02 10:20 | Julian Gimenez v Ren Nakamura | 7-5,0-6,6-1 |
| ITF M15 Monastir | 2021/05/31 12:30 | Maxence Beauge v Ren Nakamura | 6-2,5-7,11-9 |