| UTR Pro Tennis Series Pazardzhik | 2021/04/11 10:00 | Alexander Lazov v Constant De La Bassetiere | 5-7,1-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/10 13:30 | Alexander Lazov v Aristotelis Thanos | 6-4,5-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/09 14:00 | Mick Lescure v Alexander Lazov | 6-3,3-6,6-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/08 10:00 | Gergely Madarasz v Alexander Lazov | 6-4,7-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/06 08:30 | Jules Marie v Alexander Lazov | 6-1,6-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/05 11:30 | Alexander Lazov v Yanais Laurent | 0-6,6-1,6-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/03 08:30 | Alexander Lazov v Dinko Dinev | 6-7,2-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/02 11:30 | Ronan Joncour v Alexander Lazov | 1-6,5-7 |
| UTR Pro Tennis Series Bucharest | 2021/06/06 06:00 | Yanais Laurent v Valentin Vanta | 2-6,1-5 |
| UTR Pro Tennis Series Bucharest | 2021/06/05 10:00 | Ioan Alexandru Chirita v Valentin Vanta | 2-6,6-3,4-6 |
| UTR Pro Tennis Series Bucharest | 2021/06/04 11:30 | Warren Sinius v Valentin Vanta | 0-6,2-6 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 12:00 | Vlad Andrei Dancu v Valentin Vanta | 7-5,6-3 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 06:00 | Kuzey Cekirge v Valentin Vanta | 6-3,7-5 |
| UTR Pro Tennis Series Bucharest | 2021/06/02 13:00 | Valentin Vanta v Samuil Konov | 4-6,6-2,6-2 |
| ITF M15 Bucharest | 2021/05/24 09:30 | Jaimee Floyd Angele v Valentin Vanta | 6-3,6-3 |
| ITF M15 Antalya | 2021/05/12 09:00 | Sandro Kopp v Valentin Vanta | 6-7,6-1,6-2 |