| TT Elite Series | 2023/05/26 07:30 | Jakub Seibert v Jakub Kosowski | W | 0-3 |
| TT Elite Series | 2023/05/25 11:20 | Jakub Seibert v Jakub Kosowski | L | 3-0 |
| TT Elite Series | 2023/05/25 07:10 | Jakub Seibert v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2023/06/25 09:50 | Jakub Kosowski v Bartosz Czerwinski | L | 1-3 |
| TT Elite Series | 2023/06/25 08:40 | Jakub Kosowski v Patryk Lewandowski | W | 3-0 |
| TT Elite Series | 2023/06/25 07:30 | Jakub Kosowski v Karol Wisniewski | W | 3-1 |
| TT Elite Series | 2023/06/25 06:20 | Szymon Kolasa v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2023/06/25 05:40 | Jakub Kosowski v Lukasz Nadolski | W | 3-2 |
| TT Elite Series | 2023/06/24 16:40 | Patryk Lewandowski v Jakub Kosowski | W | 0-3 |
| TT Elite Series | 2023/06/24 15:20 | Jakub Kosowski v Josef Braun | W | 3-0 |
| TT Elite Series | 2023/06/24 14:20 | Jakub Stecyszyn v Jakub Kosowski | W | 2-3 |
| TT Elite Series | 2023/06/07 16:10 | Artur Grela v Jakub Seibert | L | 3-0 |
| TT Elite Series | 2023/06/07 15:20 | Vladislav Ursu v Jakub Seibert | L | 3-2 |
| TT Elite Series | 2023/06/07 13:30 | Piotr Chodorski v Jakub Seibert | L | 3-0 |
| TT Elite Series | 2023/06/07 12:50 | Antoni Witkowski v Jakub Seibert | L | 3-2 |
| TT Elite Series | 2023/06/07 11:20 | Petr David v Jakub Seibert | L | 3-1 |
| TT Elite Series | 2023/06/07 10:10 | Vladislav Ursu v Jakub Seibert | L | 3-0 |
| TT Elite Series | 2023/06/07 09:30 | Antoni Witkowski v Jakub Seibert | L | 3-1 |
| TT Elite Series | 2023/06/07 07:30 | Artur Grela v Jakub Seibert | L | 3-0 |