Stadium: Cancha 4 Round: 26
| ITF M25 Guayaquil | 2021/10/26 19:00 | Kuan Yu Chen v Miguel L Sicco | 6-7,6-2,4-6 |
| ITF M25 Guayaquil | 2021/08/01 14:00 | Miguel L Sicco v Cristobal Castro | 6-7,2-6 |
| ITF M25 Guayaquil | 2021/10/26 17:05 | Santiago Padilla Cote v Matias Zukas | 1-6,2-6 |
| Challenger Bogota | 2021/10/18 20:00 | Matias Zukas v Roberto Quiroz | 4-6,6-7 |
| Challenger Ambato | 2021/09/24 17:45 | Juan Pablo Varillas v Matias Zukas | 6-2,6-4 |
| Challenger Ambato | 2021/09/21 15:00 | Matias Zukas v Renzo Olivo | 6-4,5-7,6-4 |
| Challenger Ambato | 2021/09/20 15:00 | Luca Castelnuovo v Matias Zukas | 3-6,6-7 |
| Challenger Ambato | 2021/09/19 17:00 | Matias Zukas v Matias Franco Descotte | 6-4,7-6 |
| Challenger Quito | 2021/09/13 16:05 | Matias Zukas v Cristian Rodriguez | 7-6,5-7,6-7 |
| UTR Pro Tennis Series - Sofia | 2021/09/03 08:30 | Yurii Dzhavakian v Matias Zukas | 6-4,6-4 |