| UTR Pro Tennis Series Sofia | 2021/09/03 07:00 | 라조브, 알렉산더 v 네데브, 디안 | 7-5,5-3 |
| UTR Pro Tennis Series Sofia | 2021/09/01 09:30 | 자바키안, 유리 v 라조브, 알렉산더 | 7-6,7-6 |
| UTR Pro Tennis Series Sofia | 2021/08/31 09:30 | 이아나키에브, 밀렌 v 라조브, 알렉산더 | 6-7,2-6 |
| UTR Pro Tennis Series Sofia | 2021/08/30 11:30 | 데 쿠이퍼, 줄리엔 v 라조브, 알렉산더 | 2-6,2-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/17 07:30 | 라조브, 알렉산더 v 라오렌트, 야나이스 | 6-3,2-6,4-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/16 10:30 | Arthus De La Bassetiere v 라조브, 알렉산더 | 6-4,1-6,3-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/15 06:00 | 자바키안, 유리 v 라조브, 알렉산더 | 1-6,2-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/13 07:30 | Nesterov, Petr v 라조브, 알렉산더 | 6-4,5-3 |
| UTR Pro Tennis Series Sofia | 2021/09/03 07:00 | George Lazarov v 케시디스, 크리스토스 | 6-4,6-4 |
| UTR Pro Tennis Series Sofia | 2021/09/02 07:00 | 미크하이리우크, 이반 v George Lazarov | 3-6,1-6 |
| UTR Pro Tennis Series Sofia | 2021/09/01 06:30 | 우질로브스키, 볼로도이미르 v George Lazarov | 1-6,6-1,1-5 |
| UTR Pro Tennis Series Sofia | 2021/08/31 09:30 | 반타, 발렌틴 v George Lazarov | 6-4,6-0 |
| UTR Pro Tennis Series Sofia | 2021/08/30 12:00 | 시니우스, 바렌 v George Lazarov | 2-6,2-5 |
| UTR Pro Tennis Series Sofia | 2021/08/29 12:00 | George Lazarov v Mario Radev | 6-0,6-1 |