| Bulgaria Liga Pro | 2021/07/04 06:00 | Alexey Nikiforov v Mikhail Suvorov | 6-2,5-7,10-12 |
| Bulgaria Liga Pro | 2021/07/04 04:30 | Mikhail Suvorov v Alexey Nikiforov | 5-7,4-6 |
| Bulgaria Liga Pro | 2021/06/30 06:00 | Mikhail Suvorov v Vladislav Pryakhin | 6-4,5-7,10-8 |
| Bulgaria Liga Pro | 2021/06/30 04:30 | Vladislav Pryakhin v Mikhail Suvorov | 6-4,7-6 |
| Bulgaria Liga Pro | 2021/07/16 06:00 | Andrei Smirnov v Alexey Nikiforov | 6-2,4-6,10-7 |
| Bulgaria Liga Pro | 2021/07/16 04:30 | Alexey Nikiforov v Andrei Smirnov | 6-3,6-0 |