| UTR Pro Tennis Series Manzanillo | 2021/12/16 16:30 | Guillermo Castaneda v Manuel S Montemayor | 3-6,1-6 |
| UTR Pro Tennis Series Manzanillo | 2021/12/15 21:35 | Rodrigo Echavarria v Guillermo Castaneda | 6-3,6-1 |
| UTR Pro Tennis Series Manzanillo | 2021/12/14 19:30 | Liam Oliver Toroman v Guillermo Castaneda | 7-6,6-7,5-2 |
| UTR Pro Tennis Series Manzanillo | 2021/08/15 13:00 | Rafael De Alba v Guillermo Castaneda | 6-3,5-3 |
| UTR Pro Tennis Series Manzanillo | 2021/08/14 16:00 | Guillermo Castaneda v Lazaro Navarro-Batles | 6-1,6-1 |
| UTR Pro Tennis Series Manzanillo | 2021/08/13 14:30 | Guillermo Castaneda v Luciano Doria | 4-6,4-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/11 14:00 | Guillermo Castaneda v Maximiliano Estevez | 6-7,1-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/10 16:00 | Guillermo Castaneda v Alan Sau Franco | 3-6,3-6 |
| UTR Pro Tennis Series Manzanillo | 2021/12/16 19:50 | Rodrigo Echavarria v Mario Radev | 2-6,6-4,6-1 |
| UTR Pro Tennis Series Manzanillo | 2021/12/15 21:45 | Liam Oliver Toroman v Mario Radev | 6-1,6-0 |
| UTR Pro Tennis Series Manzanillo | 2021/12/13 19:30 | Manuel S Montemayor v Mario Radev | 6-0,6-0 |
| 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 |