Stadium: Cancha 3 Round: 26 Ground: Clay
| Challenger Cordenons | 2021/08/01 09:00 | Camilo Ugo Carabelli v Rafael Matos | 4-6,7-5,6-2 |
| Challenger Aix en Provence | 2021/06/13 11:15 | Nikolas Sanchez Izquierdo v Rafael Matos | 6-2,6-2 |
| Challenger Tallahassee | 2021/04/18 19:30 | Rafael Matos v Sekou Bangoura | 3-6,4-6 |
| Challenger Santiago | 2021/03/16 17:10 | Pedro Sousa v Rafael Matos | 6-4,6-3 |
| Challenger Santiago | 2021/03/15 13:00 | Joao Menezes v Rafael Matos | 6-2,6-4 |
| Challenger Santiago | 2021/03/14 14:00 | Luis David Martinez v Rafael Matos | 2-6,3-6 |
| ATP Santiago | 2021/03/06 13:00 | Rafael Matos v Pedro Sakamoto | 3-6,1-6 |
| Challenger Concepcion | 2021/02/15 15:40 | Thiago Agustin Tirante v Rafael Matos | 6-3,2-6,6-3 |
| Challenger Prague | 2021/08/09 09:25 | Geoffrey Blancaneaux v Carlos Gomez-Herrera | 6-3,3-6,6-0 |
| Challenger Prague | 2021/08/08 09:40 | Andrew Paulson v Carlos Gomez-Herrera | 1-6,3-6 |
| Challenger Segovia | 2021/07/26 11:05 | Carlos Gimeno Valero v Carlos Gomez-Herrera | 6-3,2-6,6-4 |
| Challenger Segovia | 2021/07/25 15:10 | Nicolas H Cuesta v Carlos Gomez-Herrera | 1-6,0-6 |
| Challenger Pozoblanco | 2021/07/19 20:45 | Carlos Gomez-Herrera v Hiroki Moriya | 6-3,3-6,0-6 |
| Challenger Aix en Provence | 2021/06/13 10:00 | Carlos Gomez-Herrera v Titouan Droguet | 5-7,4-6 |
| ATP Belgrade | 2021/05/23 10:50 | Carlos Gomez-Herrera v Alex Molcan | 3-6,6-7 |
| ATP Belgrade | 2021/05/22 13:25 | John-Patrick Smith v Carlos Gomez-Herrera | 4-6,6-7 |