| UTR Pro Tennis Series - Pazardzhik | 2021/07/14 07:30 | Vladimir Popov v Gorazd Srbljak | 1-6,4-6 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/13 10:30 | Vladimir Popov v Yanaki Milev | 4-6,6-4,2-6 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/12 06:00 | Vladimir Popov v Vasil Kirkov | 2-6,4-6 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/14 07:30 | Vasil Kirkov v Aleksandr Braynin | 7-5,5-1 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/12 06:00 | Yanaki Milev v Aleksandr Braynin | 7-6,4-6,4-6 |
| ITF - M15 Sofia | 2021/07/08 09:00 | Nikita Mashtakov v Aleksandr Braynin | 6-4,6-2 |
| ITF - M15 Sofia | 2021/07/07 07:00 | Denis Klok v Aleksandr Braynin | 4-6,3-6 |
| ITF - M15 Sofia | 2021/07/05 08:00 | Aleksandr Braynin v Maxim Krapivin | 6-4,6-3 |
| ITF - M15 Novomoskovsk | 2021/06/04 14:00 | Aleksandr Braynin v Alex M Pujolras | 1-6,6-3,3-6 |
| ITF - M15 Novomoskovsk | 2021/06/03 11:20 | Aleksandr Braynin v Benjamin Dhoe | 6-4,5-7,10-3 |
| ITF - M15 Novomoskovsk | 2021/05/31 06:15 | Aleksandr Braynin v Simon Sedliak | 7-6,6-1 |