| Challenger Buenos Aires | 2021/10/17 14:00 | Lautaro Midon v Maximiliano Estevez | 7-6,2-6,6-1 |
| UTR Pro Tennis Series Manzanillo | 2021/08/14 14:30 | Maximiliano Estevez v Jose Antonio Rodriguez Rodriguez | 4-6,6-3,1-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/13 13:00 | Alan Sau Franco v Maximiliano Estevez | 1-6,6-1,0-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/12 13:00 | Oscar M S Hirales v Maximiliano Estevez | 1-6,2-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/11 14:00 | Guillermo Castaneda v Maximiliano Estevez | 6-7,1-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/09 13:00 | Luciano Doria v Maximiliano Estevez | 6-4,7-5 |
| UTR Pro Tennis Series Manzanillo | 2021/08/07 14:45 | Alan Magadan v Maximiliano Estevez | 7-5,6-1 |
| UTR Pro Tennis Series Manzanillo | 2021/08/06 13:30 | Oscar M S Hirales v Maximiliano Estevez | 4-6,4-5 |
| UTR Pro Tennis Series California | 2021/10/16 15:00 | Manuel S Montemayor v Yassine Smiej | 0-3 |
| UTR Pro Tennis Series California | 2021/10/14 16:30 | Arthur Bellegy v Manuel S Montemayor | 4-6,7-6,1-5 |
| UTR Pro Tennis Series California | 2021/10/13 19:30 | Govind Nanda v Manuel S Montemayor | 6-1,5-4 |
| UTR Pro Tennis Series California | 2021/10/11 19:30 | Emmanuel Coste v Manuel S Montemayor | 6-4,6-7,6-4 |
| UTR Pro Tennis Series Dallas | 2021/09/04 13:00 | Alejandro Moreno v Manuel S Montemayor | 6-2,7-5 |
| UTR Pro Tennis Series Manzanillo | 2021/08/14 13:00 | Manuel S Montemayor v Alan Magadan | 6-1,2-6,5-7 |
| UTR Pro Tennis Series Manzanillo | 2021/08/13 13:00 | Manuel S Montemayor v Jose Antonio Rodriguez Rodriguez | 6-2,6-0 |
| UTR Pro Tennis Series Manzanillo | 2021/08/12 14:30 | Manuel S Montemayor v Gerardo L Villasenor | 5-7,4-6 |