Stadium: Cancha Central Round: 28 Ground: Clay
| 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 Como MD | 2021/09/01 14:35 | Matos/M R Alves v Iannaccone/Motti | 6-3,6-1 |
| Challenger Heilbronn MD | 2021/05/13 10:00 | Matos/M R Alves v Goransson/Verbeek | 4-6,6-7 |