| Challenger Ochsenhausen | 2018/08/01 12:30 | Jakub Kosowski v Adrian Wiecek | W | 3-1 |
| TT Elite Series | 2022/05/26 20:00 | Maciej Makajew v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2022/05/26 19:00 | Damian Korczak v Jakub Kosowski | W | 0-3 |
| TT Elite Series | 2022/05/26 16:30 | Petr David v Jakub Kosowski | L | 3-1 |
| TT Elite Series | 2022/05/26 15:30 | Artur Daniel v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2022/05/26 13:30 | Piotr Chodorski v Jakub Kosowski | W | 2-3 |
| TT Elite Series | 2022/05/26 12:00 | Jakub Kosowski v Artur Daniel | L | 1-3 |
| TT Elite Series | 2022/05/26 10:00 | Artur Bialek v Jakub Kosowski | L | 3-2 |
| TT Elite Series | 2022/05/26 09:00 | Maksymilian Miastowski v Jakub Kosowski | W | 0-3 |
| TT Star Series | 2022/05/12 13:45 | Patrik Klos v Adrian Wiecek | L | 3-0 |
| TT Star Series | 2022/05/12 12:45 | Jan Zandecki v Adrian Wiecek | W | 1-3 |
| TT Star Series | 2022/05/12 11:45 | Patrik Klos v Adrian Wiecek | L | 3-1 |
| TT Star Series | 2022/05/12 09:45 | Adrian Wiecek v Ondrej Kveton | W | 3-2 |
| TT Star Series | 2022/05/12 07:10 | Martin Andersen v Adrian Wiecek | W | 0-3 |
| TT Star Series | 2022/05/11 13:45 | Alfredas Udra v Adrian Wiecek | W | 2-3 |
| TT Star Series | 2022/05/11 11:15 | Tomas Mikutis v Adrian Wiecek | W | 1-3 |
| TT Star Series | 2022/05/11 08:45 | Miroslav Sklensky v Adrian Wiecek | L | 3-1 |