Stadium: Court 1 Round: 28 Ground: Clay
| Challenger Rome MD | 2021/04/29 12:15 | Doumbia/Reboul v Matos/M R Alves | 7-6,5-7,10-6 |
| Challenger Rome MD | 2021/04/28 13:05 | Diez/Martos Gornes v Matos/M R Alves | 6-4,3-6,6-10 |
| Challenger Santiago MD | 2021/03/20 19:35 | Martinez/Oliveira v Matos/M R Alves | 7-5,6-1 |
| Challenger Santiago MD | 2021/03/18 19:10 | Galdos/Mena v Matos/M R Alves | 4-6,4-6 |
| Challenger Santiago MD | 2021/03/17 17:10 | Nunez/Santibanez v Matos/M R Alves | 5-7,2-6 |
| ATP Cordoba MD | 2021/02/28 20:00 | Matos/M R Alves v Arneodo/Paire | 6-4,6-1 |
| ATP Cordoba MD | 2021/02/26 18:30 | Matos/M R Alves v Koepfer/Sousa | 7-6,6-7,10-6 |
| ATP Cordoba MD | 2021/02/25 22:55 | Krajicek/Skugor v Matos/M R Alves | 6-7,7-5,2-10 |