| 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 | Keisidis, Christos v Stefanos Sakellaridis | 4-6,6-4,6-4 |
| UTR Pro Tennis Series Zadar | 2021/09/28 12:30 | Kekez, Duje 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 M25 Pardubice | 2021/09/20 09:00 | Patzanovsky, Christopher v Stefanos Sakellaridis | 6-4,1-6,7-10 |
| UTR Pro Tennis Series Zadar | 2021/10/02 07:00 | Maxim Krapivin v Matic, Mile | 3-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/10/01 14:30 | Matic, Mile v Lawrence Bataljin | 4-6,0-6 |
| UTR Pro Tennis Series Zadar | 2021/09/29 09:30 | Matic, Mile v Maric, Filip | 6-0,3-6,5-4 |
| UTR Pro Tennis Series Zadar | 2021/09/28 09:30 | Matic, Mile v Pjevcevic, Petar | 2-6,2-5 |
| UTR Pro Tennis Series Zadar | 2021/09/27 16:00 | Yanais Laurent v Matic, Mile | 6-0,5-1 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/18 08:00 | Colacioppo, Giulio v Matic, Mile | 3-6,6-2,10-3 |
| ITF - M15 Opatija | 2021/03/22 10:10 | Matic, Mile v Matyas Fuele | 6-1,3-6,5-10 |
| ITF - M15 Opatija | 2021/03/21 08:00 | Daljev, Pavle v Matic, Mile | 6-7,6-7 |