Round: 1
| Bulgaria Liga Pro | 2021/07/29 18:30 | Anton Kondrashov v Sergey Berezhnov | 3-6,3-6 |
| Bulgaria Liga Pro | 2021/07/29 17:00 | Sergey Berezhnov v Anton Kondrashov | 6-7,6-7 |
| Bulgaria Liga Pro | 2021/07/27 18:30 | Sergey Berezhnov v Anton Kondrashov | 4-6,6-0,11-9 |
| Bulgaria Liga Pro | 2021/07/27 17:00 | Anton Kondrashov v Sergey Berezhnov | 4-6,6-4,10-8 |
| Bulgaria Liga Pro | 2021/07/05 18:30 | Sergey Berezhnov v Anton Kondrashov | 0-6,4-6 |
| Bulgaria Liga Pro | 2021/07/05 17:00 | Anton Kondrashov v Sergey Berezhnov | 6-3,6-3 |
| Bulgaria Liga Pro | 2021/06/29 18:30 | Anton Kondrashov v Sergey Berezhnov | 6-4,6-0 |
| Bulgaria Liga Pro | 2021/06/29 17:00 | Sergey Berezhnov v Anton Kondrashov | 3-6,2-6 |
| Bulgaria Liga Pro | 2021/08/12 18:30 | Anton Kondrashov v Mikhail Gusev | 5-7,0-6 |
| Bulgaria Liga Pro | 2021/08/12 17:00 | Mikhail Gusev v Anton Kondrashov | 0-6,4-6 |
| Bulgaria Liga Pro | 2021/08/08 18:30 | Mihail Minchenkov v Anton Kondrashov | 3-6,6-3,10-4 |
| Bulgaria Liga Pro | 2021/08/08 17:00 | Anton Kondrashov v Mihail Minchenkov | 4-6,4-6 |
| Bulgaria Liga Pro | 2021/07/29 18:30 | Anton Kondrashov v Sergey Berezhnov | 3-6,3-6 |
| Bulgaria Liga Pro | 2021/07/29 17:00 | Sergey Berezhnov v Anton Kondrashov | 6-7,6-7 |
| Bulgaria Liga Pro | 2021/07/27 18:30 | Sergey Berezhnov v Anton Kondrashov | 4-6,6-0,11-9 |
| Bulgaria Liga Pro | 2021/07/27 17:00 | Anton Kondrashov v Sergey Berezhnov | 4-6,6-4,10-8 |
| Bulgaria Liga Pro | 2021/08/31 06:00 | Sergey Berezhnov v Dmitriy Volkov | 6-3,6-3 |
| Bulgaria Liga Pro | 2021/08/31 04:30 | Dmitriy Volkov v Sergey Berezhnov | 7-6,1-6,10-6 |
| Bulgaria Liga Pro | 2021/08/29 06:00 | Dmitriy Volkov v Sergey Berezhnov | 6-3,4-6,9-11 |
| Bulgaria Liga Pro | 2021/08/29 04:30 | Sergey Berezhnov v Dmitriy Volkov | 0-6,6-7 |
| Bulgaria Liga Pro | 2021/08/27 06:00 | Aleksandr Gorbachyov v Sergey Berezhnov | 2-6,3-6 |
| Bulgaria Liga Pro | 2021/08/27 04:30 | Sergey Berezhnov v Aleksandr Gorbachyov | 6-7,6-4,10-5 |
| Bulgaria Liga Pro | 2021/07/29 18:30 | Anton Kondrashov v Sergey Berezhnov | 3-6,3-6 |
| Bulgaria Liga Pro | 2021/07/29 17:00 | Sergey Berezhnov v Anton Kondrashov | 6-7,6-7 |