| UTR Pro Tennis Series - Zadar | 2021/11/15 12:00 | Robert Rumler v Valerii Naumenko | 6-0,6-0 |
| 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 - Brasov | 2021/10/27 07:00 | Edris Fetisleam v Vladimir Popov | 6-0,5-2 |
| UTR Pro Tennis Series - Brasov | 2021/10/25 10:00 | Ioan Alexandru Chirita v Vladimir Popov | 6-2,6-2 |
| UTR Pro Tennis Series - Nis | 2021/10/10 08:00 | Christos Keisidis v Vladimir Popov | 6-1,5-2 |
| UTR Pro Tennis Series - Nis | 2021/10/09 13:15 | Aleksandar Ljubojevic v Vladimir Popov | 4-6,5-7 |
| UTR Pro Tennis Series - Nis | 2021/10/08 18:15 | Petar Pjevcevic v Vladimir Popov | 2-6,6-0,5-1 |
| UTR Pro Tennis Series - Nis | 2021/10/07 14:00 | Duje Kekez v Vladimir Popov | 6-0,5-1 |