| Bulgaria Liga Pro | 2021/08/30 06:00 | Andrey Kapustin v Vladimir Kulikov | 4-6,6-4,10-2 |
| Bulgaria Liga Pro | 2021/08/30 04:30 | Vladimir Kulikov v Andrey Kapustin | 3-6,4-6 |
| Bulgaria Liga Pro | 2021/07/07 06:00 | Andrey Kapustin v Vladimir Kulikov | 7-6,6-3 |
| Bulgaria Liga Pro | 2021/07/07 04:30 | Vladimir Kulikov v Andrey Kapustin | 7-5,1-6,7-10 |