| TT Elite Series | 03/27 12:20 | - | Adrian Wiecek v Jakub Kosowski | W | 0-3 | |
| TT Elite Series | 03/27 11:25 | - | Adrian Wiecek v Jakub Kosowski | L | 3-1 | |
| TT Elite Series | 03/27 10:35 | - | Daniel Bak v Jakub Kosowski | W | 2-3 | |
| TT Elite Series | 03/27 08:35 | - | Piotr Cyrnek v Jakub Kosowski | W | 0-3 | |
| TT Elite Series | 03/27 07:50 | - | Jan Zandecki v Jakub Kosowski | L | 3-1 | |
| TT Elite Series | 03/27 06:10 | - | Adam Dosz v Jakub Kosowski | W | 2-3 | |
| TT Elite Series | 03/21 17:25 | - | Artur Daniel v Jakub Kosowski | L | 3-1 | |
| TT Elite Series | 03/21 16:35 | - | Maciej Podsiadlo v Jakub Kosowski | W | 0-3 | |
| TT Elite Series | 03/21 14:35 | - | Krzysztof Wloczko v Jakub Kosowski | L | 3-1 | |
| TT Elite Series | 03/21 13:50 | - | Marcin Jadczyk v Jakub Kosowski | L | 3-2 | |
| TT Elite Series | 03/21 12:10 | - | Josef Braun v Jakub Kosowski | W | 2-3 | |
| TT Elite Series | 03/21 11:25 | - | Josef Braun v Jakub Kosowski | L | 3-2 | |
| TT Elite Series | 03/21 10:35 | - | Slawomir Dosz v Jakub Kosowski | W | 0-3 | |
| TT Elite Series | 03/21 08:35 | - | Petr David v Jakub Kosowski | L | 3-1 | |
| TT Elite Series | 03/21 07:50 | - | Marcin Jadczyk v Jakub Kosowski | W | 2-3 | |
| TT Elite Series | 03/21 06:10 | - | Adam Dosz v Jakub Kosowski | L | 3-1 | |
| TT Elite Series | 03/20 17:25 | - | Jakub Kosowski v Petr David | L | 1-3 | |
| TT Elite Series | 03/20 15:50 | - | Adrian Wiecek v Jakub Kosowski | W | 2-3 | |
| TT Elite Series | 03/20 15:00 | - | Adam Dosz v Jakub Kosowski | W | 1-3 | |
| TT Elite Series | 03/20 14:15 | - | Jakub Kosowski v Mateusz Golebiowski | L | 1-3 | |
| TT Elite Series | 03/20 13:00 | - | Jakub Kosowski v Slawomir Dosz | L | 2-3 | |
| TT Elite Series | 03/20 11:25 | - | Petr David v Jakub Kosowski | L | 3-1 | |
| TT Elite Series | 03/20 10:35 | - | Slawomir Dosz v Jakub Kosowski | W | 0-3 | |
| TT Elite Series | 03/20 08:35 | - | Adam Dosz v Jakub Kosowski | W | 1-3 | |
| TT Elite Series | 03/20 07:50 | - | Mateusz Golebiowski v Jakub Kosowski | W | 2-3 | |
| TT Elite Series | 03/20 06:10 | - | Adrian Wiecek v Jakub Kosowski | W | 1-3 | |
| TT Elite Series | 03/12 17:45 | - | Piotr Chodorski v Jakub Kosowski | W | 1-3 | |
| TT Elite Series | 03/12 16:35 | - | Jakub Kosowski v Amirreza Abbasi | W | 3-2 | |
| TT Elite Series | 03/12 15:25 | - | Marcin Jadczyk v Jakub Kosowski | W | 2-3 | |
| TT Elite Series | 03/12 14:15 | - | Mateusz Golebiowski v Jakub Kosowski | L | 3-1 |