| Bulgaria Liga Pro | 2021/09/03 06:00 | Ivan Erastov v Andrey Kapustin | 6-3,6-4 |
| Bulgaria Liga Pro | 2021/09/03 04:30 | Andrey Kapustin v Ivan Erastov | 4-6,4-6 |
| Bulgaria Liga Pro | 2021/08/28 05:30 | Ivan Erastov v Andrey Kapustin | 7-6,4-6,10-8 |
| Bulgaria Liga Pro | 2021/08/28 04:00 | Andrey Kapustin v Ivan Erastov | 6-2,6-0 |