| UTR Pro Tennis Series Pazardzhik | 2021/07/15 09:00 | Gorazd Srbljak v Yanaki Milev | 6-3,6-2 |
| 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 | Vasil Kirkov v Gorazd Srbljak | 2-6,6-3,1-6 |
| ITF M25 Belgrade | 2021/07/01 09:40 | Quentin Folliot v Gorazd Srbljak | 3-6,6-4,6-1 |
| ITF M25 Belgrade | 2021/06/30 09:00 | Marko Miladinovic v Gorazd Srbljak | 3-6,4-6 |
| ITF M25 Belgrade | 2021/06/29 09:20 | Edoardo Lavagno v Gorazd Srbljak | 6-0,6-3 |
| ITF M25 Belgrade | 2021/06/28 10:00 | Nicolas Bruna v Gorazd Srbljak | 2-6,3-6 |
| Davis Cup | 2021/06/26 09:15 | Gorazd Srbljak v Maxim Cazac | 6-1,6-0 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/15 09:00 | Vladimir Popov v Aleksandr Braynin | 4-6,5-7 |
| 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 |