Stadion: Court 1 Round: 25 Ground: Hardcourt outdoor
| ATP - St. Petersburg | 2021/10/26 13:20 | John Millman v Yshai Oliel | 6-1,6-1 |
| Challenger - Barcelona | 2021/10/05 10:30 | Nikola Milojevic v Yshai Oliel | 7-5,0-6,6-4 |
| Challenger - Barcelona | 2021/10/04 13:00 | Oleksii Krutykh v Yshai Oliel | 1-6,2-6 |
| Challenger - Barcelona | 2021/10/03 11:05 | Vladyslav Manafov v Yshai Oliel | 2-6,3-6 |
| Challenger - Sibiu | 2021/09/30 07:30 | Marc-Andrea Huesler v Yshai Oliel | 6-4,6-1 |
| Challenger - Sibiu | 2021/09/28 07:00 | Jay Clarke v Yshai Oliel | 6-7,4-6 |
| Challenger - Sibiu | 2021/09/27 07:00 | Yshai Oliel v Elmar Ejupovic | 6-3,7-5 |
| Challenger - Sibiu | 2021/09/26 09:05 | Yshai Oliel v Sebastian Gima | 6-4,6-4 |
| 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 |