| Bulgaria Liga Pro | 2021/11/26 07:30 | Nikita Kuznetsov v Pavel Zelenkin | 6-3,6-4 |
| Bulgaria Liga Pro | 2021/10/22 06:00 | Pavel Zelenkin v Nikita Kuznetsov | 3-6,2-6 |
| Bulgaria Liga Pro | 2021/10/22 04:30 | Nikita Kuznetsov v Pavel Zelenkin | 6-3,6-3 |
| Bulgaria Liga Pro | 2021/11/26 07:30 | Nikita Kuznetsov v Pavel Zelenkin | 6-3,6-4 |
| Bulgaria Liga Pro | 2021/11/24 06:00 | Vladimir Gusev v Pavel Zelenkin | 6-2,2-6,7-10 |
| Bulgaria Liga Pro | 2021/11/24 04:30 | Pavel Zelenkin v Vladimir Gusev | 6-2,6-4 |
| Bulgaria Liga Pro | 2021/11/19 06:00 | Andrey Abragin v Pavel Zelenkin | 6-3,6-4 |
| Bulgaria Liga Pro | 2021/11/19 04:30 | Pavel Zelenkin v Andrey Abragin | 6-4,6-2 |
| Bulgaria Liga Pro | 2021/11/17 06:00 | Vladimir Gusev v Pavel Zelenkin | 4-6,6-3,8-10 |
| Bulgaria Liga Pro | 2021/11/17 04:30 | Pavel Zelenkin v Vladimir Gusev | 6-1,6-4 |
| Bulgaria Liga Pro | 2021/10/22 06:00 | Pavel Zelenkin v Nikita Kuznetsov | 3-6,2-6 |
| Bulgaria Liga Pro | 2021/11/26 07:30 | Nikita Kuznetsov v Pavel Zelenkin | 6-3,6-4 |
| Bulgaria Liga Pro | 2021/10/25 06:00 | Nikita Kuznetsov v Andrey Kapustin | 6-3,6-4 |
| Bulgaria Liga Pro | 2021/10/25 04:30 | Andrey Kapustin v Nikita Kuznetsov | 3-6,4-6 |
| Bulgaria Liga Pro | 2021/10/22 06:00 | Pavel Zelenkin v Nikita Kuznetsov | 3-6,2-6 |
| Bulgaria Liga Pro | 2021/10/22 04:30 | Nikita Kuznetsov v Pavel Zelenkin | 6-3,6-3 |
| Bulgaria Liga Pro | 2021/10/18 06:00 | Nikita Kuznetsov v Andrey Kapustin | 6-3,4-6,7-10 |
| Bulgaria Liga Pro | 2021/10/18 04:30 | Andrey Kapustin v Nikita Kuznetsov | 6-4,6-2 |
| Bulgaria Liga Pro | 2021/09/28 06:00 | Nikita Kuznetsov v Andrei Smirnov | 4-6,2-6 |