| TT Elite Series | 2023/02/12 17:50 | Jakub Kosowski v Jakub Stecyszyn | L | 2-3 |
| TT Elite Series | 2023/02/12 12:20 | Jakub Stecyszyn v Jakub Kosowski | W | 2-3 |
| TT Elite Series | 2023/02/03 13:50 | Jakub Kosowski v Jakub Stecyszyn | W | 3-1 |
| TT Elite Series | 2022/09/20 20:30 | Jakub Kosowski v Jakub Stecyszyn | W | 3-0 |
| TT Elite Series | 2022/06/25 15:30 | Jakub Kosowski v Jakub Stecyszyn | W | 3-0 |
| TT Elite Series | 2022/06/24 15:30 | Jakub Kosowski v Jakub Stecyszyn | W | 3-1 |
| TT Elite Series | 2022/06/24 06:00 | Jakub Kosowski v Jakub Stecyszyn | W | 3-1 |
| TT Elite Series | 2023/02/14 20:50 | Jakub Kosowski v Antoni Witkowski | W | 3-2 |
| TT Elite Series | 2023/02/14 19:20 | Jakub Kosowski v Konrad Kulpa | W | 3-0 |
| TT Elite Series | 2023/02/14 17:50 | Jakub Kosowski v Martin Olejnik | L | 0-3 |
| TT Elite Series | 2023/02/14 16:20 | Jan Zandecki v Jakub Kosowski | L | 3-1 |
| TT Elite Series | 2023/02/14 15:20 | Jakub Kosowski v Ibrahim Gunduz | L | 2-3 |
| TT Elite Series | 2023/02/14 13:50 | Antoni Witkowski v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2023/02/14 12:20 | Jakub Kosowski v Konrad Kulpa | L | 1-3 |
| TT Elite Series | 2023/02/14 10:50 | Josef Braun v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2023/02/19 20:50 | Jakub Stecyszyn v Artur Grela | L | 0-3 |
| TT Elite Series | 2023/02/19 19:20 | Jakub Stecyszyn v Vladislav Ursu | L | 0-3 |
| TT Elite Series | 2023/02/19 17:50 | Jakub Stecyszyn v Michal Benes | W | 3-1 |
| TT Elite Series | 2023/02/19 16:20 | Miroslav Sklensky v Jakub Stecyszyn | L | 3-0 |
| TT Elite Series | 2023/02/19 15:20 | Jakub Stecyszyn v Patrik Klos | L | 2-3 |
| TT Elite Series | 2023/02/19 13:20 | Tomasz Kotowski v Jakub Stecyszyn | L | 3-2 |
| TT Elite Series | 2023/02/19 12:20 | Vladislav Ursu v Jakub Stecyszyn | L | 3-0 |
| TT Elite Series | 2023/02/19 09:50 | Daniel Bak v Jakub Stecyszyn | L | 3-0 |