| Bulgaria Liga Pro | 2021/07/13 06:00 | Andrey Kapustin v Nikita Kuznetsov | 6-2,6-1 |
| Bulgaria Liga Pro | 2021/07/13 04:30 | Nikita Kuznetsov v Andrey Kapustin | 3-6,3-6 |
| Bulgaria Liga Pro | 2021/07/11 06:00 | Andrey Kapustin v Nikita Kuznetsov | 5-7,6-2,10-5 |
| Bulgaria Liga Pro | 2021/07/11 04:30 | Nikita Kuznetsov v Andrey Kapustin | 6-3,6-4 |