Round: 1
| Bulgaria Liga Pro | 2021/09/11 04:00 | Anton Kondrashov v Sergey Berezhnov | 6-2,3-6,10-3 |
| 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 |