| Bulgaria Liga Pro | 2021/10/15 06:00 | Andrei Smirnov v Andrey Kapustin | 6-3,3-6,11-9 |
| Bulgaria Liga Pro | 2021/10/15 04:30 | Andrey Kapustin v Andrei Smirnov | 2-6,6-4,10-12 |
| Bulgaria Liga Pro | 2021/10/11 06:00 | Andrey Kapustin v Andrei Smirnov | 6-3,3-6,7-10 |
| Bulgaria Liga Pro | 2021/10/11 04:30 | Andrei Smirnov v Andrey Kapustin | 1-6,5-7 |
| Bulgaria Liga Pro | 2021/11/08 06:00 | Ivan Erastov v Andrey Kapustin | 7-6,6-2 |
| Bulgaria Liga Pro | 2021/11/08 04:30 | Andrey Kapustin v Ivan Erastov | 2-6,6-4,10-6 |
| Bulgaria Liga Pro | 2021/10/25 06:00 | Никита Кузнецов v Andrey Kapustin | 6-3,6-4 |
| Bulgaria Liga Pro | 2021/10/25 04:30 | Andrey Kapustin v Никита Кузнецов | 3-6,4-6 |
| Bulgaria Liga Pro | 2021/10/20 06:00 | Pavel Zelenkin v Andrey Kapustin | 2-6,3-6 |
| Bulgaria Liga Pro | 2021/10/20 04:30 | Andrey Kapustin v Pavel Zelenkin | 7-5,7-6 |
| Bulgaria Liga Pro | 2021/10/18 06:00 | Никита Кузнецов v Andrey Kapustin | 6-3,4-6,7-10 |
| Bulgaria Liga Pro | 2021/10/18 04:30 | Andrey Kapustin v Никита Кузнецов | 6-4,6-2 |
| Bulgaria Liga Pro | 2021/10/27 06:00 | Ivan Erastov v Andrei Smirnov | 2-6,6-4,10-3 |
| Bulgaria Liga Pro | 2021/10/27 04:30 | Andrei Smirnov v Ivan Erastov | 6-1,4-6,8-10 |
| Bulgaria Liga Pro | 2021/10/15 06:00 | Andrei Smirnov v Andrey Kapustin | 6-3,3-6,11-9 |
| Bulgaria Liga Pro | 2021/10/15 04:30 | Andrey Kapustin v Andrei Smirnov | 2-6,6-4,10-12 |
| Bulgaria Liga Pro | 2021/10/13 06:00 | Pavel Zelenkin v Andrei Smirnov | 6-4,7-6 |
| Bulgaria Liga Pro | 2021/10/13 04:30 | Andrei Smirnov v Pavel Zelenkin | 7-5,6-4 |
| Bulgaria Liga Pro | 2021/10/11 06:00 | Andrey Kapustin v Andrei Smirnov | 6-3,3-6,7-10 |
| Bulgaria Liga Pro | 2021/10/11 04:30 | Andrei Smirnov v Andrey Kapustin | 1-6,5-7 |