| UTR Pro Tennis Series Sofia | 2021/09/04 07:30 | Alexander Lazov v George Lazarov | 3-5 |
| UTR Pro Tennis Series Plovdiv | 2022/02/12 13:00 | Anthony Genov v George Lazarov | 3-6,1-6 |
| UTR Pro Tennis Series Plovdiv | 2022/02/09 10:30 | George Lazarov v Gorazd Srbljak | 5-7,2-6 |
| UTR Pro Tennis Series Plovdiv | 2022/02/08 07:30 | George Lazarov v Yurii Dzhavakian | 6-4,6-7,6-1 |
| UTR Pro Tennis Series Plovdiv | 2022/02/07 09:00 | Simon A Ivanov v George Lazarov | 6-3,3-6,6-3 |
| ITF M15 Sozopol | 2021/10/10 13:30 | Matic Dimic v George Lazarov | 7-5,6-0 |
| ITF M15 Sozopol | 2021/10/06 06:45 | Yan Bondarevskiy v George Lazarov | 6-7,6-1,6-3 |
| ITF M15 Sozopol | 2021/10/05 06:30 | George Lazarov v Nikola Keremedchiev | 6-2,6-7,3-10 |
| ITF M15 Sozopol | 2021/10/04 08:00 | George Lazarov v Dan Radu Munteanu | 6-0,6-2 |
| UTR Pro Tennis Series Plovdiv | 2022/02/12 13:00 | Vladimir Filip v Alexander Lazov | 0-6,3-6 |
| UTR Pro Tennis Series Plovdiv | 2022/02/11 07:30 | Oleksandr Bielinskyi v Alexander Lazov | 6-3,7-6 |
| UTR Pro Tennis Series Plovdiv | 2022/02/10 11:07 | Gabriel Donev v Alexander Lazov | 6-3,4-6,6-3 |
| UTR Pro Tennis Series Plovdiv | 2022/02/09 07:30 | Ioan Alexandru Chirita v Alexander Lazov | 1-6,6-4,2-6 |
| UTR Pro Tennis Series Plovdiv | 2022/02/07 10:30 | Yanaki Milev v Alexander Lazov | 7-5,5-3 |
| UTR Pro Tennis Series Barcelona | 2022/02/02 14:00 | Alexander Lazov v Eduardo Cohen | 3-6,6-3,3-5 |
| UTR Pro Tennis Series Barcelona | 2022/02/01 15:04 | Alexander Lazov v Ivan Liutarevich | 1-6,4-6 |
| UTR Pro Tennis Series Barcelona | 2022/01/31 08:00 | Roberto Ortega-Olmedo v Alexander Lazov | 6-1,6-2 |