Stadium: Court 11 Round: 62 Ground: Clay
| UTR Pro Tennis Series Zadar | 2021/10/03 08:00 | Stefanos Sakellaridis v Mile Matic | 5-7,4-5 |
| UTR Pro Tennis Series Zadar | 2021/10/02 11:30 | Stefanos Sakellaridis v Myroslav Bondar | 6-2,5-0 |
| UTR Pro Tennis Series Zadar | 2021/10/01 08:00 | Janos Fekete v Stefanos Sakellaridis | 6-1,6-6 |
| UTR Pro Tennis Series Zadar | 2021/09/30 09:30 | Christos Keisidis v Stefanos Sakellaridis | 4-6,6-4,6-4 |
| UTR Pro Tennis Series Zadar | 2021/09/28 12:30 | Duje Kekez v Stefanos Sakellaridis | 7-6,6-3 |
| UTR Pro Tennis Series Zadar | 2021/09/27 11:30 | Stefanos Sakellaridis v Drazen Petrovic | 7-6,2-6,5-2 |
| ITF M25 Pardubice | 2021/09/22 11:05 | Daniel Siniakov v Stefanos Sakellaridis | 6-3,6-2 |
| ITF M25 Pardubice | 2021/09/21 08:00 | Daniel Paty v Stefanos Sakellaridis | 3-6,3-6 |
| ITF M15 Platja D'Aro | 2021/10/11 08:30 | Franco Emanuel Egea v Giuseppe Tresca | 6-2,2-6,10-4 |
| ITF M15 Platja D'Aro | 2021/10/10 11:00 | Grigoriy Korobeynikov v Giuseppe Tresca | 2-6,3-6 |
| ITF M15 Antalya | 2021/03/07 07:00 | Giuseppe Tresca v Andrea Picchione | 2-6,1-6 |
| ITF M15 Antalya | 2021/03/03 12:05 | Giuseppe Tresca v Stefan Palosi | 7-6,3-6,3-6 |
| ITF M15 Antalya | 2021/03/02 07:00 | Dragos Nicolae Madaras v Giuseppe Tresca | 6-1,7-6 |
| ITF M15 Antalya | 2021/03/01 09:00 | Matteo Meneghetti v Giuseppe Tresca | 0-6,0-6 |
| ITF M15 Antalya | 2021/02/28 08:00 | Giuseppe Tresca v Gorazd Srbljak | 7-6,7-6 |
| ITF M15 Antalya | 2021/02/22 07:00 | Giuseppe Tresca v Sidane Pontjodikromo | 0-6,1-6 |