| Bulgaria Liga Pro | 2021/10/13 04:30 | Andrei Smirnov v Pavel Zelenkin | 7-5,6-4 |
| Bulgaria Liga Pro | 2021/10/13 04:30 | Andrei Smirnov v Pavel Zelenkin | 7-5,6-4 |
| Bulgaria Liga Pro | 2021/10/08 06:00 | Pavel Zelenkin v Andrey Kapustin | 1-6,4-6 |
| Bulgaria Liga Pro | 2021/10/08 04:30 | Andrey Kapustin v Pavel Zelenkin | 7-6,6-2 |
| 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 | 2021/09/30 06:00 | Vladimir Kulikov v Andrei Smirnov | 3-6,0-6 |
| Bulgaria Liga Pro | 2021/09/30 04:30 | Andrei Smirnov v Vladimir Kulikov | 3-6,1-6 |
| Bulgaria Liga Pro | 2021/09/28 06:00 | Nikita Kuznetsov v Andrei Smirnov | 4-6,2-6 |