Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Loule | 2021/10/10 13:00 | Jeremias Lima-Perez v Fermin Calvo Barcelo | 2-6,4-6 |
| UTR Pro Tennis Series Barcelona | 2021/10/02 10:00 | Fermin Calvo Barcelo v Adria Soriano Barrera | 1-6,2-5 |
| UTR Pro Tennis Series Barcelona | 2021/09/30 11:00 | Fermin Calvo Barcelo v Noah Lopez | 6-3,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/09/29 08:00 | Fermin Calvo Barcelo v George Botezan | 6-0,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/09/28 11:00 | Fermin Calvo Barcelo v Ervin H Eminefendic | 6-1,5-2 |
| UTR Pro Tennis Series Barcelona | 2021/09/27 09:30 | Fermin Calvo Barcelo v Pol Fernandez | 6-4,6-2 |
| 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 Loule | 2021/10/10 12:00 | Jaime Faria v Gian Luca Tanner | 2-6,4-6 |
| ITF M25 Setubal | 2021/10/06 12:30 | Rinky Hijikata v Gian Luca Tanner | 6-1,5-7,6-1 |
| ITF M25 Setubal | 2021/10/05 11:20 | Raphael Calzi v Gian Luca Tanner | 6-3,1-6,6-10 |
| ITF M25 Setubal | 2021/10/04 14:15 | Vlad Cristian Breazu v Gian Luca Tanner | 6-2,1-6,6-10 |
| ITF M25 Sierre | 2021/08/31 16:30 | Luca Castelnuovo v Gian Luca Tanner | 7-5,6-3 |
| ITF M25 Caslano | 2021/08/25 10:40 | Nicolas Parizzia v Gian Luca Tanner | 2-6,6-2,6-4 |
| ITF M25 Muttenz | 2021/08/18 15:00 | Rinky Hijikata v Gian Luca Tanner | 6-3,6-0 |
| ITF M25 Muttenz | 2021/08/17 12:00 | Gian Luca Tanner v Gabriele Moghini | 6-7,2-6 |