| 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 |
| Others | 2021/12/11 16:23 | Przemyslaw Perzynski v Michal Malachowski | W | 1-3 |
| Polish Grand Prix | 2019/11/22 16:30 | Michal Malachowski v Michal Skorski | W | 3-1 |
| Czech Extraleague | 2019/05/05 15:24 | Michal Malachowski v Pawel Fertikowski | L | 0-3 |