| Bulgaria Liga Pro | 2021/08/10 06:00 | Mikhail Suvorov v Andrei Smirnov | 4-6,6-3,5-10 |
| Bulgaria Liga Pro | 2021/08/10 04:30 | Andrei Smirnov v Mikhail Suvorov | 6-1,6-3 |
| Bulgaria Liga Pro | 2021/08/05 06:00 | Mikhail Suvorov v Andrei Smirnov | 1-6,6-7 |
| Bulgaria Liga Pro | 2021/08/05 04:30 | Andrei Smirnov v Mikhail Suvorov | 6-0,6-3 |
| Bulgaria Liga Pro | 2021/08/01 06:00 | Andrei Smirnov v Mikhail Suvorov | 7-5,6-1 |
| Bulgaria Liga Pro | 2021/08/01 04:30 | Mikhail Suvorov v Andrei Smirnov | 3-6,5-7 |
| 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 |