Stadium: Cancha 3 Round: 26 Ground: Clay
| Challenger - Santiago | 2021/10/03 14:00 | Alexis Gautier v Matos, Rafael | 6-3,6-2 |
| Challenger Tulln | 2021/09/05 13:00 | Matos, Rafael v Simon, Tobias | 6-7,2-6 |
| Cordenons, Italy | 2021/08/01 09:00 | Camilo Ugo Carabelli v Matos, Rafael | 4-6,7-5,6-2 |
| Challenger - Aix en Provence | 2021/06/13 11:15 | Nikolas Sanchez Izquierdo v Matos, Rafael | 6-2,6-2 |
| Challenger - Tallahassee | 2021/04/18 19:30 | Matos, Rafael v Bangoura, Sekou | 3-6,4-6 |
| Challenger - Santiago | 2021/03/16 17:10 | Sousa, Pedro v Matos, Rafael | 6-4,6-3 |
| Challenger - Santiago | 2021/03/15 13:00 | Joao Menezes v Matos, Rafael | 6-2,6-4 |
| Challenger - Santiago | 2021/03/14 14:00 | Martinez, Luis David v Matos, Rafael | 2-6,3-6 |
| Challenger - Santiago | 2021/10/04 16:30 | Nicolas Alvarez v Gomez-Herrera, Carlos | 6-3,1-6,6-4 |
| Challenger - Santiago | 2021/10/03 19:50 | Soares Klier, Gilbert v Gomez-Herrera, Carlos | 6-3,2-6,3-6 |
| Challenger Lima | 2021/09/28 16:45 | Nicolas Kicker v Gomez-Herrera, Carlos | 6-4,2-6,6-4 |
| Challenger Lima | 2021/09/27 16:50 | Gomez-Herrera, Carlos v Thirouin, Jean | 6-1,3-6,6-1 |
| Challenger Lima | 2021/09/26 20:50 | Gomez-Herrera, Carlos v Luca Castelnuovo | 7-5,6-0 |
| Ambato, Ecuador | 2021/09/23 16:55 | Thiago Agustin Tirante v Gomez-Herrera, Carlos | 7-6,3-6,7-6 |
| Ambato, Ecuador | 2021/09/20 20:00 | Gomez-Herrera, Carlos v Esteve Lobato, Eduard | 6-4,6-7,6-3 |
| Challenger Quito | 2021/09/14 21:05 | Gomez-Herrera, Carlos v Menendez-Maceiras, Adrian | 2-6,4-6 |