| 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 |
| Bulgaria Liga Pro | 2021/10/03 06:30 | Vladimir Kulikov v Andrei Smirnov | 7-6,6-4 |
| Bulgaria Liga Pro | 2021/10/03 05:00 | Andrei Smirnov v Vladimir Kulikov | 7-5,6-4 |
| 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 | 2021/09/01 06:00 | Ivan Erastov v Vladimir Kulikov | 6-4,6-3 |
| Bulgaria Liga Pro | 2021/09/01 04:30 | Vladimir Kulikov v Ivan Erastov | 3-6,6-2,6-10 |
| 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 |