| TT Elite Series | 2022/08/19 10:30 | Jakub Folwarski v Jakub Kosowski | W | 3-2 |
| 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 | 2023/04/14 16:43 | Tomasz Lewandowski v Jakub Folwarski | W | 2-3 |
| TT Elite Series | 2022/08/19 12:30 | Jakub Folwarski v Artur Grela | W | 3-2 |
| TT Elite Series | 2022/08/19 10:30 | Jakub Folwarski v Jakub Kosowski | W | 3-2 |
| TT Elite Series | 2022/08/19 09:00 | Jakub Folwarski v Josef Braun | W | 3-0 |
| TT Elite Series | 2022/08/19 07:00 | Jakub Folwarski v Kamil Nalepa | W | 3-1 |
| TT Elite Series | 2022/08/19 05:30 | Jakub Folwarski v Adrian Wiecek | W | 3-2 |
| TT Elite Series | 2022/08/18 12:30 | Jakub Folwarski v Petr David | W | 3-2 |
| TT Elite Series | 2022/08/18 10:30 | Jakub Folwarski v Adrian Wiecek | W | 3-1 |
| TT Elite Series | 2023/04/26 15:10 | Jakub Kosowski v Daniel Lis | W | 3-1 |
| TT Elite Series | 2023/04/26 14:10 | Jakub Kosowski v Adam Dosz | L | 0-3 |
| TT Elite Series | 2023/04/26 13:00 | Jakub Kosowski v Grzegorz Felkel | W | 3-2 |
| TT Elite Series | 2023/04/26 11:50 | Michal Murawski v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2023/04/26 11:10 | Jakub Kosowski v Lukasz Jarocki | W | 3-2 |
| TT Elite Series | 2023/04/26 09:40 | Jakub Kosowski v Damian Wojdyla | W | 3-2 |
| TT Elite Series | 2023/04/26 08:10 | Piotr Chlodnicki v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2023/04/26 07:20 | Daniel Lis v Jakub Kosowski | W | 0-3 |