| UTR Pro Tennis Series Brasov | 2021/10/30 09:30 | Stefan A Andreescu v Lazov, Alexander | 6-3,7-5 |
| UTR Pro Tennis Series Brasov | 2021/10/29 10:00 | Dzhavakian, Yurii v Lazov, Alexander | 6-2,6-4 |
| UTR Pro Tennis Series Brasov | 2021/10/28 07:00 | Vlad Andrei Dancu v Lazov, Alexander | 6-3,7-5 |
| UTR Pro Tennis Series Brasov | 2021/10/27 08:30 | Tudor Vlad Vasilache v Lazov, Alexander | 6-2,3-6,2-6 |
| UTR Pro Tennis Series Brasov | 2021/10/25 11:30 | Dimitrov, Martin v Lazov, Alexander | 5-7,4-6 |
| UTR Pro Tennis Series Nis | 2021/10/10 17:00 | Ivan Liutarevich v Lazov, Alexander | 6-4,6-4 |
| UTR Pro Tennis Series Nis | 2021/10/09 10:15 | Lazov, Alexander v Kekez, Duje | 6-3,3-6,5-1 |
| UTR Pro Tennis Series Nis | 2021/10/08 18:15 | Botezan, George v Lazov, Alexander | 2-6,3-5 |