Round: 1
| Bulgaria Liga Pro | 2021/07/23 04:30 | Dmitriy Volkov v Aleksandr Gorbachyov | 3-6,6-3,7-10 |
| Bulgaria Liga Pro | 2021/07/15 06:00 | Aleksandr Gorbachyov v Dmitriy Volkov | 1-6,6-7 |
| Bulgaria Liga Pro | 2021/07/15 04:30 | Dmitriy Volkov v Aleksandr Gorbachyov | 4-6,6-3,7-10 |
| Bulgaria Liga Pro | 2021/06/26 18:30 | Aleksandr Gorbachyov v Dmitriy Volkov | 6-0,6-1 |
| Bulgaria Liga Pro | 2021/06/26 17:00 | Dmitriy Volkov v Aleksandr Gorbachyov | 6-4,6-3 |
| Bulgaria Liga Pro | 2021/07/23 04:30 | Dmitriy Volkov v Aleksandr Gorbachyov | 3-6,6-3,7-10 |
| 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 | 2021/07/15 06:00 | Aleksandr Gorbachyov v Dmitriy Volkov | 1-6,6-7 |
| Bulgaria Liga Pro | 2021/07/15 04:30 | Dmitriy Volkov v Aleksandr Gorbachyov | 4-6,6-3,7-10 |
| Bulgaria Liga Pro | 2021/06/26 18:30 | Aleksandr Gorbachyov v Dmitriy Volkov | 6-0,6-1 |
| Bulgaria Liga Pro | 2021/06/26 17:00 | Dmitriy Volkov v Aleksandr Gorbachyov | 6-4,6-3 |
| Bulgaria Liga Pro | 2021/06/24 06:00 | Aleksandr Gorbachyov v Mihail Minchenkov | 3-6,5-7 |
| Bulgaria Liga Pro | 2021/07/23 04:30 | Dmitriy Volkov v Aleksandr Gorbachyov | 3-6,6-3,7-10 |
| Bulgaria Liga Pro | 2021/07/21 06:00 | Dmitriy Volkov v Sergey Berezhnov | 7-6,3-6,10-7 |
| Bulgaria Liga Pro | 2021/07/21 04:30 | Sergey Berezhnov v Dmitriy Volkov | 7-6,4-6,2-10 |
| Bulgaria Liga Pro | 2021/07/19 06:00 | Dmitriy Volkov v Sergey Berezhnov | 6-4,2-6,6-10 |
| Bulgaria Liga Pro | 2021/07/19 04:30 | Sergey Berezhnov v Dmitriy Volkov | 6-2,1-6,9-11 |
| Bulgaria Liga Pro | 2021/07/15 06:00 | Aleksandr Gorbachyov v Dmitriy Volkov | 1-6,6-7 |
| Bulgaria Liga Pro | 2021/07/15 04:30 | Dmitriy Volkov v Aleksandr Gorbachyov | 4-6,6-3,7-10 |
| Bulgaria Liga Pro | 2021/07/03 18:30 | Dmitriy Volkov v Anton Kondrashov | 4-6,4-6 |