Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Cancun | 2021/11/28 14:00 | Paul Spencer v Felipe Santamaria | 6-4,6-1 |
| ITF M15 Guatemala | 2021/11/24 15:30 | Peter Bertran v Felipe Santamaria | 6-1,6-0 |
| ITF M15 Cundinamarca | 2021/11/16 14:30 | Felipe Santamaria v Alvaro Guillen Meza | 1-6,1-6 |
| ITF M25 Guayaquil | 2021/10/26 15:00 | Juan A H Serrano v Felipe Santamaria | 6-1,6-3 |
| ITF M15 Cancun | 2021/10/18 15:00 | Felipe Santamaria v Gabriel Evans | 1-6,1-6 |
| ITF M15 Cancun | 2021/10/17 18:00 | Felipe Santamaria v Fernando A. Z. Cantillana | 6-4,6-2 |
| ITF M15 Cancun | 2021/10/10 17:00 | Felipe Santamaria v Alfredo Casso | 5-7,1-6 |
| ITF M15 Cancun | 2021/10/03 14:00 | Felipe Santamaria v Andres Urrea | 3-6,4-6 |
| ITF M15 Cancun | 2021/12/02 16:00 | Kiranpal Pannu v Ren Nakamura | 6-2,6-4 |
| ITF M15 Cancun | 2021/11/30 16:00 | Ren Nakamura v Joshua Sheehy | 6-7,0-6 |
| ITF M15 Cancun | 2021/11/29 14:00 | Masamichi Imamura v Ren Nakamura | 2-6,4-6 |
| ITF M15 Cancun | 2021/11/28 14:00 | Juan Sebastian Osorio v Ren Nakamura | 6-3,3-6,9-11 |
| ITF M25 Afula | 2021/11/09 12:50 | Rio Noguchi v Ren Nakamura | 7-6,6-2 |
| ITF M25 Meitar | 2021/11/02 14:30 | Yshai Oliel v Ren Nakamura | 6-4,6-2 |
| 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 |