| UTR Pro Tennis Series Manzanillo | 2021/12/08 19:30 | Miguel Angel Alonso v Manuel S Montemayor | 1-6,0-6 |
| UTR Pro Tennis Series Manzanillo | 2021/12/07 15:00 | Nicolas Cortes Campos v Manuel S Montemayor | 3-6,2-6 |
| 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 | 2021/12/07 15:00 | Miguel Angel Alonso v Oscar M S Hirales | 3-6,6-3,6-4 |
| UTR Pro Tennis Series Manzanillo | 2021/12/06 15:30 | Oscar M S Hirales v Rodrigo Echavarria | 6-7,4-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/14 17:30 | Alonso A Delgado v Oscar M S Hirales | 6-1,6-1 |
| 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 | Oscar M S Hirales v Alan Sau Franco | 2-6,2-6 |
| 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 13:30 | Oscar M S Hirales v Maximiliano Estevez | 4-6,4-5 |
| UTR Pro Tennis Series Manzanillo | 2021/08/05 14:30 | Oscar M S Hirales v Alan Sau Franco | 1-6,3-6 |