| TT Elite Series | 2022/08/18 09:00 | Jakub Folwarski v Jakub Kosowski | L | 1-3 |
| Challenger Ochsenhausen | 2020/07/17 10:30 | Jakub Folwarski v Jakub Kosowski | L | 1-3 |
| Challenger Ochsenhausen | 2020/07/13 06:30 | Jakub Kosowski v Jakub Folwarski | L | 3-0 |
| Challenger Ochsenhausen | 2018/10/25 09:50 | Jakub Folwarski v Jakub Kosowski | W | 3-2 |
| Challenger Ochsenhausen | 2018/10/22 12:30 | Jakub Kosowski v Jakub Folwarski | L | 3-1 |
| Challenger Ochsenhausen | 2018/06/06 08:30 | Jakub Kosowski v Jakub Folwarski | L | 3-0 |
| Challenger Ochsenhausen | 2018/06/04 07:10 | Jakub Kosowski v Jakub Folwarski | L | 3-0 |
| Challenger Ochsenhausen | 2018/05/30 06:30 | Jakub Folwarski v Jakub Kosowski | L | 1-3 |
| Challenger Ochsenhausen | 2017/09/06 09:50 | Jakub Kosowski v Jakub Folwarski | W | 2-3 |
| Challenger Ochsenhausen | 2017/08/09 07:10 | Jakub Kosowski v Jakub Folwarski | L | 3-1 |
| Challenger Ochsenhausen | 2017/04/17 07:50 | Jakub Kosowski v Jakub Folwarski | L | 3-0 |
| Challenger Ochsenhausen | 2016/12/12 10:06 | Jakub Kosowski v Jakub Folwarski | W | 1-3 |