| Bulgaria Liga Pro | 2021/07/29 06:00 | Aleksandr Gorbachyov v Dmitriy Volkov | 7-6,4-6,14-12 |
| Bulgaria Liga Pro | 2021/07/29 04:30 | Dmitriy Volkov v Aleksandr Gorbachyov | 6-1,6-7,10-5 |
| Bulgaria Liga Pro | 2021/07/25 06:00 | Sherali Satvaldyev v Dmitriy Volkov | 0-6,2-6 |
| Bulgaria Liga Pro | 2021/07/25 04:30 | Dmitriy Volkov v Sherali Satvaldyev | 6-2,6-2 |
| 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 |