| Challenger Ochsenhausen | 2018/08/01 12:30 | Jakub Kosowski v Adrian Wiecek | W | 3-1 |
| Challenger Ochsenhausen | 2020/09/25 12:50 | Jakub Kosowski v Alberto Mino | L | 1-3 |
| Challenger Ochsenhausen | 2020/09/25 11:35 | Jakub Kosowski v Dauud Cheaib | W | 3-0 |
| Challenger Ochsenhausen | 2020/09/25 10:30 | Jiri Martinko v Jakub Kosowski | W | 1-3 |
| Challenger Ochsenhausen | 2020/09/24 12:30 | Jakub Kosowski v Miroslav Horejsi | L | 0-3 |
| Challenger Ochsenhausen | 2020/09/24 11:10 | Niagol Stoyanov v Jakub Kosowski | W | 2-3 |
| Challenger Ochsenhausen | 2020/09/24 09:10 | Dauud Cheaib v Jakub Kosowski | W | 2-3 |
| Challenger Ochsenhausen | 2020/09/23 13:10 | Alberto Mino v Jakub Kosowski | W | 2-3 |
| Challenger Ochsenhausen | 2020/09/23 09:50 | Mihai Bobocica v Jakub Kosowski | L | 3-2 |
| TT Star Series | 2022/01/25 12:15 | Jakub Seibert v Adrian Wiecek | W | 0-3 |
| TT Star Series | 2022/01/25 10:45 | David Reitspies v Adrian Wiecek | L | 3-2 |
| TT Star Series | 2022/01/25 08:45 | Jiri Vrablik v Adrian Wiecek | L | 3-0 |
| TT Star Series | 2022/01/24 14:15 | Antonin Gavlas v Adrian Wiecek | L | 3-0 |
| TT Star Series | 2022/01/24 11:45 | Tomas Tregler v Adrian Wiecek | L | 3-0 |
| TT Star Series | 2022/01/24 07:00 | Tomasz Tomaszuk v Adrian Wiecek | W | 0-3 |
| TT Star Series | 2022/01/14 14:15 | Bohuslav Koszyk v Adrian Wiecek | W | 0-3 |
| TT Star Series | 2022/01/14 13:36 | Adrian Wiecek v Maksim Kiselev | L | 0-3 |