Round: 1
| Bulgaria Liga Pro | 2021/08/23 18:30 | Dmitriy Volkov v Mihail Minchenkov | 6-2,3-6,10-7 |
| Bulgaria Liga Pro | 2021/08/23 17:00 | Mihail Minchenkov v Dmitriy Volkov | 7-6,2-6,10-7 |
| Bulgaria Liga Pro | 2021/08/21 18:30 | Konstantin Kromin v Mihail Minchenkov | 3-6,3-6 |
| Bulgaria Liga Pro | 2021/08/21 17:00 | Mihail Minchenkov v Konstantin Kromin | 6-3,6-1 |
| Bulgaria Liga Pro | 2021/08/17 18:30 | Dmitriy Volkov v Mihail Minchenkov | 2-6,3-6 |
| Bulgaria Liga Pro | 2021/08/17 17:00 | Mihail Minchenkov v Dmitriy Volkov | 6-0,6-3 |
| Bulgaria Liga Pro | 2021/08/14 18:30 | Mikhail Gusev v Mihail Minchenkov | 6-1,5-7,8-10 |
| Bulgaria Liga Pro | 2021/08/14 17:00 | Mihail Minchenkov v Mikhail Gusev | 6-3,6-4 |
| Bulgaria Liga Pro | 2021/09/17 18:30 | Mikhail Yastrebov v Artem Terekhov | 7-6,7-6 |
| Bulgaria Liga Pro | 2021/09/17 17:00 | Artem Terekhov v Mikhail Yastrebov | 3-6,6-3,10-7 |
| Bulgaria Liga Pro | 2021/09/08 06:00 | Igor Krylov v Mikhail Yastrebov | 6-4,0-6,10-5 |
| Bulgaria Liga Pro | 2021/09/08 04:30 | Mikhail Yastrebov v Igor Krylov | 6-1,3-6,10-7 |
| Bulgaria Liga Pro | 2021/09/06 06:00 | Leonid Chuvilgin v Mikhail Yastrebov | 2-6,3-6 |
| Bulgaria Liga Pro | 2021/09/06 04:30 | Mikhail Yastrebov v Leonid Chuvilgin | 6-3,6-2 |
| Bulgaria Liga Pro | 2021/09/02 06:00 | Igor Krylov v Mikhail Yastrebov | 6-3,3-6,6-10 |
| Bulgaria Liga Pro | 2021/09/02 04:30 | Mikhail Yastrebov v Igor Krylov | 6-2,7-5 |