| UTR Pro Tennis Series Manzanillo | 2021/12/12 16:30 | Rodrigo Echavarria v Adrian Contreras | 6-0,1-0 |
| UTR Pro Tennis Series Manzanillo | 2021/12/11 19:30 | Aleksandar Temov v Adrian Contreras | 0-6,1-6 |
| UTR Pro Tennis Series Manzanillo | 2021/12/10 15:00 | Eduardo Yahir Orozco Rangel v Adrian Contreras | 4-6,3-5 |
| UTR Pro Tennis Series Manzanillo | 2021/12/09 19:53 | Ivar Aramburu v Adrian Contreras | 2-6,6-0,6-0 |
| ITF M15 Cancun | 2021/11/28 14:00 | Adrian Contreras v Austin Ansari | 3-6,0-6 |
| ITF M15 Cancun | 2021/10/18 15:00 | Luis Britto v Adrian Contreras | 6-2,6-3 |
| ITF M15 Cancun | 2021/10/12 15:30 | Luciano Doria v Adrian Contreras | 6-1,6-1 |
| ITF M15 Cancun | 2021/10/11 18:00 | Adrian Contreras v Benjamin L Ambrosio | 3-6,6-0,10-2 |
| UTR Pro Tennis Series Manzanillo | 2021/12/12 18:00 | Lazaro Navarro-Batles v Mario Radev | 6-2,5-4 |
| UTR Pro Tennis Series Manzanillo | 2021/12/10 19:30 | Javier A M Crespo v Mario Radev | 6-3,6-4 |
| UTR Pro Tennis Series Manzanillo | 2021/12/09 22:00 | Santiago Arredondo v Mario Radev | 6-2,4-6,5-2 |
| UTR Pro Tennis Series Manzanillo | 2021/12/08 15:00 | Luis Pineda v Mario Radev | 6-1,5-3 |
| UTR Pro Tennis Series Manzanillo | 2021/12/06 14:00 | Jose Antonio Rodriguez Rodriguez v Mario Radev | 6-1,6-1 |
| UTR Pro Tennis Series Zadar | 2021/11/18 15:30 | Janos Fekete v Mario Radev | 6-0,5-2 |
| UTR Pro Tennis Series Zadar | 2021/11/16 16:00 | Jerko Brkic v Mario Radev | 6-3,6-1 |
| UTR Pro Tennis Series Zadar | 2021/11/15 10:30 | Eduard Shcherbyna v Mario Radev | 6-1,6-3 |