| UTR Pro Tennis Series Manzanillo | 2021/12/09 15:00 | Javier A M Crespo v Jose Antonio Rodriguez Rodriguez | 6-4,7-6 |
| UTR Pro Tennis Series Copenhagen | 2021/06/19 07:00 | Mick Lescure v Javier A M Crespo | 2-6,7-5,0-0 |
| UTR Pro Tennis Series Copenhagen | 2021/06/17 09:30 | Javier A M Crespo v Jesper Klov Nilsson | 6-2,6-0 |
| 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 |
| UTR Pro Tennis Series Zadar | 2021/11/14 10:00 | Mario Radev v Ante P Ercegovic | 7-5,5-2 |
| UTR Pro Tennis Series Sofia | 2021/09/01 08:00 | Christos Keisidis v Mario Radev | 6-1,4-6,6-4 |