| UTR Pro Tennis Series Barcelona | 2021/06/13 07:00 | Bruno P Navarro v David Redondo | 6-0,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/06/11 09:30 | Jorge Martinez Martinez v David Redondo | 6-1,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/06/10 12:30 | Jaume Pla Malfeito v David Redondo | 4-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/08 08:00 | Noah Lopez v David Redondo | 6-3,5-7,7-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/07 09:30 | David Redondo v Antoine Escoffier | 5-7,5-6 |
| ITF M25 Madrid | 2021/09/13 10:00 | Alejandro Garcia v Fermin Calvo Barcelo | 6-1,6-2 |
| ITF M25 Madrid | 2021/09/12 13:00 | Ilya Rudiukov v Fermin Calvo Barcelo | 5-7,3-6 |
| ITF M25 Ricany | 2021/08/30 08:00 | Antonin Bolardt v Fermin Calvo Barcelo | 6-2,6-2 |
| ITF M25 Ricany | 2021/08/29 09:00 | Fermin Calvo Barcelo v Tomas Krcma | 6-2,6-0 |
| ITF M25 Poznan | 2021/08/25 08:00 | Fermin Calvo Barcelo v Felix Gill | 3-6,6-7 |
| ITF M25 Poznan | 2021/08/24 16:10 | Harry Wendelken v Fermin Calvo Barcelo | 6-2,6-3 |
| ITF M25 Poznan | 2021/08/24 08:00 | Juliusz Bienkiewicz v Fermin Calvo Barcelo | 4-6,2-6 |
| ITF M25 Poznan | 2021/08/22 08:00 | Fermin Calvo Barcelo v Adam Bronka | 6-0,6-2 |