Round: 1
| Bulgaria Liga Pro | 2021/07/07 18:30 | Vitaliy Zaychikov v Zoriy Oganov | 6-3,7-6 |
| Bulgaria Liga Pro | 2021/07/07 17:00 | Zoriy Oganov v Vitaliy Zaychikov | 7-5,7-6 |
| Bulgaria Liga Pro | 2021/06/23 18:30 | Vitaliy Zaychikov v Vsevolod Fokin | 3-6,6-4,10-7 |
| Bulgaria Liga Pro | 2021/06/23 17:00 | Vsevolod Fokin v Vitaliy Zaychikov | 6-1,6-1 |
| Bulgaria Liga Pro | 2021/06/21 18:30 | Vitaliy Zaychikov v Zoriy Oganov | 6-4,2-6,11-13 |
| Bulgaria Liga Pro | 2021/06/21 17:00 | Zoriy Oganov v Vitaliy Zaychikov | 6-4,2-6,10-6 |
| Bulgaria Liga Pro | 2021/07/09 18:30 | Vasily Trifonov v Zoriy Oganov | 3-6,1-6 |
| Bulgaria Liga Pro | 2021/07/09 17:00 | Zoriy Oganov v Vasily Trifonov | 6-4,6-4 |
| Bulgaria Liga Pro | 2021/07/02 18:30 | Vasily Trifonov v Artem Belousov | 2-6,6-3,5-10 |
| Bulgaria Liga Pro | 2021/07/02 17:00 | Artem Belousov v Vasily Trifonov | 1-6,3-6 |