| ITF M15 Sofia | 2021/07/08 09:10 | Alexandar Lazarov v Andrew Fenty | 3-6,6-1,5-7 |
| ITF M15 Sofia | 2021/07/06 08:00 | Alexandar Lazarov v Dinko Dinev | 6-1,6-2 |
| ITF M25 Belgrade | 2021/07/03 09:55 | Alexandar Lazarov v Nick Hardt | 2-6,1-6 |
| ITF M25 Belgrade | 2021/07/02 07:00 | Alexandar Lazarov v Edoardo Lavagno | 6-2,6-0 |
| ITF M25 Belgrade | 2021/06/30 12:45 | Luka Petrovic v Alexandar Lazarov | 0-6,2-6 |
| ITF M15 Skopje | 2021/06/13 08:55 | Miljan Zekic v Alexandar Lazarov | 6-4,7-6 |
| ITF M15 Skopje | 2021/06/12 10:05 | Alexandar Lazarov v Alexis Gautier | 6-4,6-3 |
| ITF M15 Skopje | 2021/06/11 11:15 | Alexandar Lazarov v Ronan Joncour | 6-3,6-1 |
| ITF M15 Sofia | 2021/07/04 06:30 | Matteo De Vincentis v Valentin Vanta | 6-4,6-0 |
| ITF M25 Belgrade | 2021/06/27 09:00 | Valentin Vanta v Aleksa Mardjonovic | 5-7,3-6 |
| 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 |