Stadium: Cancha Central Round: 28 Ground: Clay
| Challenger Santiago MD | 2021/10/07 16:00 | Matos/M R Alves v Baez/P De Almeida | 6-4,6-3 |
| Challenger Santiago MD | 2021/10/06 17:30 | Matos/M R Alves v Ortiz/Ortiz Gamonal | 6-2,6-1 |
| Challenger Tulln MD | 2021/09/11 09:00 | Brown/Vavassori v Matos/M R Alves | 7-6,6-1 |
| Challenger Tulln MD | 2021/09/10 08:30 | Haerteis/Hassan v Matos/M R Alves | 3-6,6-7 |
| Challenger Tulln MD | 2021/09/09 10:20 | Martineau/Villanueva v Matos/M R Alves | 1-6,2-6 |
| Challenger Tulln MD | 2021/09/08 15:00 | Emesz/Kaufmann v Matos/M R Alves | 3-6,3-6 |
| Challenger Como MD | 2021/09/04 15:30 | Matos/M R Alves v Martinez/Vavassori | 6-7,6-4,10-6 |
| Challenger Como MD | 2021/09/03 09:00 | Matos/M R Alves v Erler/Miedler | 7-5,6-2 |
| Challenger Santiago MD | 2021/10/07 23:50 | Hidalgo/Jarry v Barrientos/Romboli | 7-6,7-6 |
| Challenger Santiago MD | 2021/10/06 18:45 | Verdugo/Reyes-Varela v Hidalgo/Jarry | 6-7,4-6 |