| UTR Pro Tennis Series Barcelona | 2021/12/11 08:00 | Toledo Bague, Pol v Vladimir Popov | 6-4,3-2 |
| UTR Pro Tennis Series Barcelona | 2021/12/10 11:00 | Vladimir Popov v Rogic Hadzalic, Alen | 2-6,4-6 |
| UTR Pro Tennis Series Barcelona | 2021/12/08 16:32 | Vladimir Popov v Kolisnyk, Olexiy | 4-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/11/19 15:03 | Kolisnyk, Olexiy v Vladimir Popov | 6-0,6-4 |
| UTR Pro Tennis Series Zadar | 2021/11/18 12:00 | Rumler, Robert v Vladimir Popov | 6-2,5-1 |
| UTR Pro Tennis Series Zadar | 2021/11/16 12:00 | Valerii Naumenko v Vladimir Popov | 3-6,3-6 |
| UTR Pro Tennis Series Zadar | 2021/11/14 12:00 | Vladimir Popov v Kekez, Duje | 0-6,2-6 |
| UTR Pro Tennis Series Brasov | 2021/10/28 11:30 | Antonescu, Vasile v Vladimir Popov | 4-4 |
| UTR Pro Tennis Series Barcelona | 2021/12/11 08:00 | Michalis Sakellaridis v Davila Godoy, Sergio | 3-6,3-0 |
| UTR Pro Tennis Series Barcelona | 2021/12/10 11:00 | Klegou, Alexis v Michalis Sakellaridis | 6-2,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/12/09 12:30 | Laurent, Thomas 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 Mikhaylyuk, Ivan | 0-3 |
| UTR Pro Tennis Series Zadar | 2021/11/18 09:00 | Michalis Sakellaridis v Pjevcevic, Petar | 6-3,7-6 |
| UTR Pro Tennis Series Zadar | 2021/11/15 13:30 | Michalis Sakellaridis v Domagoj Biljesko | 1-6,1-6 |