Stadium: Quadra Joao Lima Round: 26 Ground: Clay
| Challenger Montevideo MD | 2021/11/13 19:55 | Matos/M R Alves v Carou/Darderi | 6-4,6-4 |
| Challenger Montevideo MD | 2021/11/12 21:20 | Matos/M R Alves v Cerundolo/Cuevas | 6-2,6-3 |
| Challenger Montevideo MD | 2021/11/11 22:10 | Matos/M R Alves v Casanova/Rodriguez Taverna | 6-4,6-1 |
| Challenger Montevideo MD | 2021/11/10 19:40 | Matos/M R Alves v Cid Subervi/Olivieri | 6-2,6-1 |
| Challenger Buenos Aires MD | 2021/10/21 17:10 | Matos/M R Alves v Darderi/Torres | 6-7,6-2,6-10 |
| Challenger Buenos Aires MD | 2021/10/20 21:10 | Matos/M R Alves v Cerundolo/Cuevas | 6-2,7-5 |
| Challenger Santiago MD | 2021/10/14 17:25 | Matos/M R Alves v Barrientos/Romboli | 6-2,4-6,7-10 |
| Challenger Santiago MD | 2021/10/08 20:50 | Matos/M R Alves v Hidalgo/Jarry | 6-2,2-6,8-10 |