Round: 1
| Bulgaria Liga Pro | 2021/07/23 06:00 | Aleksandr Gorbachyov v Dmitriy Volkov | 3-6,7-5,18-20 |
| 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 |