Round: 1
| Bulgaria Liga Pro | 2021/08/27 04:30 | Sergey Berezhnov v Aleksandr Gorbachyov | 6-7,6-4,10-5 |
| Bulgaria Liga Pro | 2021/07/17 06:00 | Aleksandr Gorbachyov v Sergey Berezhnov | 6-7,7-5,10-6 |
| Bulgaria Liga Pro | 2021/07/17 04:30 | Sergey Berezhnov v Aleksandr Gorbachyov | 7-5,6-0 |
| Bulgaria Liga Pro | 2021/08/27 04:30 | Sergey Berezhnov v Aleksandr Gorbachyov | 6-7,6-4,10-5 |
| Bulgaria Liga Pro | 2021/08/25 06:00 | Aleksandr Gorbachyov v Dmitriy Volkov | 6-2,4-6,5-10 |
| Bulgaria Liga Pro | 2021/08/25 04:30 | Dmitriy Volkov v Aleksandr Gorbachyov | 6-1,4-6,10-8 |
| Bulgaria Liga Pro | 2021/08/02 18:30 | Yury Zhupan v Aleksandr Gorbachyov | 3-6,1-6 |
| Bulgaria Liga Pro | 2021/08/02 17:00 | Aleksandr Gorbachyov v Yury Zhupan | 6-2,6-1 |
| Bulgaria Liga Pro | 2021/07/31 18:30 | Sherali Satvaldyev v Aleksandr Gorbachyov | 1-6,2-6 |
| Bulgaria Liga Pro | 2021/07/31 17:00 | Aleksandr Gorbachyov v Sherali Satvaldyev | 6-4,6-2 |
| Bulgaria Liga Pro | 2021/07/29 06:00 | Aleksandr Gorbachyov v Dmitriy Volkov | 7-6,4-6,14-12 |
| Bulgaria Liga Pro | 2021/08/27 04:30 | Sergey Berezhnov v Aleksandr Gorbachyov | 6-7,6-4,10-5 |
| Bulgaria Liga Pro | 2021/07/29 18:30 | Anton Kondrashov v Sergey Berezhnov | 3-6,3-6 |
| Bulgaria Liga Pro | 2021/07/29 17:00 | Sergey Berezhnov v Anton Kondrashov | 6-7,6-7 |
| Bulgaria Liga Pro | 2021/07/27 18:30 | Sergey Berezhnov v Anton Kondrashov | 4-6,6-0,11-9 |
| Bulgaria Liga Pro | 2021/07/27 17:00 | Anton Kondrashov v Sergey Berezhnov | 4-6,6-4,10-8 |
| Bulgaria Liga Pro | 2021/07/25 18:30 | Konstantin Kromin v Sergey Berezhnov | 2-6,1-6 |
| Bulgaria Liga Pro | 2021/07/25 17:00 | Sergey Berezhnov v Konstantin Kromin | 7-6,6-3 |
| Bulgaria Liga Pro | 2021/07/21 06:00 | Dmitriy Volkov v Sergey Berezhnov | 7-6,3-6,10-7 |