| Bulgaria Liga Pro | 2021/08/28 04:00 | Andrey Kapustin v Ivan Erastov | 6-2,6-0 |
| Bulgaria Liga Pro | 2021/08/28 04:00 | Andrey Kapustin v Ivan Erastov | 6-2,6-0 |
| Bulgaria Liga Pro | 2021/08/28 04:00 | Andrey Kapustin v Ivan Erastov | 6-2,6-0 |
| Bulgaria Liga Pro | 2021/08/02 06:00 | Andrey Kapustin v Alexey Nikiforov | 4-6,4-6 |
| Bulgaria Liga Pro | 2021/08/02 04:30 | Alexey Nikiforov v Andrey Kapustin | 7-5,4-6,10-5 |
| Bulgaria Liga Pro | 2021/07/31 06:00 | Andrey Kapustin v Vladislav Pryakhin | 2-6,2-6 |
| Bulgaria Liga Pro | 2021/07/31 04:30 | Vladislav Pryakhin v Andrey Kapustin | 6-3,1-6,12-10 |
| 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 |