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