| Bulgaria Liga Pro | 2021/07/18 06:00 | Andrei Smirnov v Mikhail Suvorov | 6-4,6-1 |
| Bulgaria Liga Pro | 2021/07/18 04:30 | Mikhail Suvorov v Andrei Smirnov | 3-6,3-6 |
| Bulgaria Liga Pro | 2021/07/20 06:00 | Mikhail Suvorov v Alexey Nikiforov | 1-6,4-6 |
| Bulgaria Liga Pro | 2021/07/20 04:30 | Alexey Nikiforov v Mikhail Suvorov | 6-7,4-6 |
| Bulgaria Liga Pro | 2021/07/18 06:00 | Andrei Smirnov v Mikhail Suvorov | 6-4,6-1 |
| Bulgaria Liga Pro | 2021/07/18 04:30 | Mikhail Suvorov v Andrei Smirnov | 3-6,3-6 |
| 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 | 2021/07/30 06:00 | Andrei Smirnov v Vladimir Kulikov | 6-2,6-7,4-10 |
| Bulgaria Liga Pro | 2021/07/30 04:30 | Vladimir Kulikov v Andrei Smirnov | 1-6,2-6 |
| Bulgaria Liga Pro | 2021/07/28 06:00 | Vladimir Kulikov v Andrei Smirnov | 6-1,6-0 |
| Bulgaria Liga Pro | 2021/07/28 04:30 | Andrei Smirnov v Vladimir Kulikov | 7-5,3-6,10-5 |
| Bulgaria Liga Pro | 2021/07/24 06:00 | Andrei Smirnov v Vladislav Pryakhin | 6-4,4-6,5-10 |
| Bulgaria Liga Pro | 2021/07/24 04:30 | Vladislav Pryakhin v Andrei Smirnov | 6-7,4-6 |
| Bulgaria Liga Pro | 2021/07/22 06:00 | Alexey Nikiforov v Andrei Smirnov | 6-1,3-6,8-10 |
| Bulgaria Liga Pro | 2021/07/22 04:30 | Andrei Smirnov v Alexey Nikiforov | 0-6,6-3,4-10 |