Round: 1
| Bulgaria Liga Pro | 2021/07/29 04:30 | Dmitriy Volkov v Aleksandr Gorbachyov | 6-1,6-7,10-5 |
| 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 | 2021/07/15 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 |