| UTR Pro Tennis Series Manzanillo | 2021/12/10 21:00 | Nicolas Cortes Campos v Oscar M S Hirales | 3-6,6-1,0-0 |
| UTR Pro Tennis Series Manzanillo | 2021/12/09 17:00 | Manuel S Montemayor v Oscar M S Hirales | 6-1,5-3 |
| 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 |