| UTR Pro Tennis Series Barcelona | 2021/12/12 12:30 | Michalis Sakellaridis v Zarichanskiy Akim | 6-0,3-0 |
| UTR Pro Tennis Series Barcelona | 2021/12/12 08:00 | Vladimir Popov v Michalis Sakellaridis | 0-6,1-6 |
| UTR Pro Tennis Series Barcelona | 2021/12/11 08:00 | Michalis Sakellaridis v Sergio Davila Godoy | 3-6,3-0 |
| UTR Pro Tennis Series Barcelona | 2021/12/10 11:00 | Alexis Klegou v Michalis Sakellaridis | 6-2,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/12/09 12:30 | Thomas Laurent v Michalis Sakellaridis | 6-1,5-0 |
| UTR Pro Tennis Series Barcelona | 2021/12/07 09:00 | Jay Friend v Michalis Sakellaridis | 6-2,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/12/06 10:30 | Michalis Sakellaridis v Andres F Canovas | 4-6,6-4,6-2 |
| UTR Pro Tennis Series Zadar | 2021/11/19 15:30 | Michalis Sakellaridis v Ivan Mikhaylyuk | 0-3 |
| ITF M25 Madrid | 2021/09/14 08:30 | Alberto Barroso Campos v Xavier Matas Ortega | 6-1,2-0 |
| Spanish Summer League | 2020/07/29 15:00 | Sergi Perez Contri v Xavier Matas Ortega | 7-5,5-4 |