| UTR Pro Tennis Series Cancun | 2021/04/08 14:30 | Nathan Oppenheim v Jose Antonio Rodriguez Rodriguez | 6-3,6-2 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/11 13:00 | Nathan Oppenheim v Manuel S Montemayor | 1-6,1-6 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/10 14:30 | Nathan Oppenheim v Gerardo L Villasenor | 5-7,0-6 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/09 18:00 | Nathan Oppenheim v Rafael De Alba | 2-6,2-6 |
| UTR Pro Tennis Series - Kalifornia | 2021/05/26 18:24 | Humberto Lopez v Nathan Oppenheim | 6-1,7-5 |
| UTR Pro Tennis Series - Kalifornia | 2021/05/23 16:30 | Nathan Oppenheim v Hiroki Sakagawa | 1-6,1-6 |
| UTR Pro Tennis Series Cancun | 2021/04/10 17:30 | Clemens Graute v Nathan Oppenheim | 6-4,5-7,6-3 |
| UTR Pro Tennis Series Cancun | 2021/04/08 14:30 | Nathan Oppenheim v Jose Antonio Rodriguez Rodriguez | 6-3,6-2 |
| UTR Pro Tennis Series Cancun | 2021/04/07 19:00 | Nathan Oppenheim v Juan A H Serrano | 0-6,0-6 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/11 13:00 | Rafael De Alba v Jose Antonio Rodriguez Rodriguez | 1-6,5-7 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/09 17:00 | Gerardo L Villasenor v Jose Antonio Rodriguez Rodriguez | 6-4,5-2 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/08 13:00 | Marcelo Sepulveda v Jose Antonio Rodriguez Rodriguez | 6-1,6-2 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/07 13:00 | Oscar M S Hirales v Jose Antonio Rodriguez Rodriguez | 2-6,7-5,0-6 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/06 15:00 | Jose Antonio Rodriguez Rodriguez v Lazaro Navarro-Batles | 7-6,5-7,1-5 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/05 16:00 | Jose Antonio Rodriguez Rodriguez v Alonso A Delgado | 6-1,6-2 |
| UTR Pro Tennis Series - Manzanillo | 2021/08/03 14:00 | Gerardo L Villasenor v Jose Antonio Rodriguez Rodriguez | 6-3,5-2 |
| UTR Pro Tennis Series Cancun | 2021/04/09 15:30 | Juan A H Serrano v Jose Antonio Rodriguez Rodriguez | 3-0 |