| TT Elite Series | 2023/11/29 13:25 | Jan Zandecki v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2023/11/29 08:15 | Jan Zandecki v Jakub Kosowski | W | 2-3 |
| TT Elite Series | 2023/11/28 13:50 | Jan Zandecki v Jakub Kosowski | W | 1-3 |
| TT Elite Series | 2023/11/28 06:10 | Jan Zandecki v Jakub Kosowski | L | 3-1 |
| TT Elite Series | 2023/11/07 14:35 | Jakub Kosowski v Jan Zandecki | L | 0-3 |
| TT Elite Series | 2023/11/07 10:35 | Jakub Kosowski v Jan Zandecki | W | 3-1 |
| TT Elite Series | 2023/10/01 11:35 | Jan Zandecki v Jakub Kosowski | W | 0-3 |
| TT Elite Series | 2023/10/01 06:25 | Jan Zandecki v Jakub Kosowski | L | 3-0 |
| TT Elite Series | 2023/12/06 11:45 | Tomasz Kotowski v Jakub Kosowski | W | 0-3 |
| TT Elite Series | 2023/12/06 10:35 | Jakub Kosowski v Vladislav Ursu | L | 0-3 |
| TT Elite Series | 2023/12/06 09:25 | Marcin Jadczyk v Jakub Kosowski | L | 3-1 |
| TT Elite Series | 2023/12/06 08:15 | Petr David v Jakub Kosowski | L | 3-2 |
| TT Elite Series | 2023/12/06 06:35 | Adrian Wiecek v Jakub Kosowski | L | 3-0 |
| TT Elite Series | 2023/12/05 17:45 | Tomasz Kotowski v Jakub Kosowski | W | 0-3 |
| TT Elite Series | 2023/12/05 16:35 | Jakub Kosowski v Martin Olejnik | W | 3-0 |
| TT Elite Series | 2023/12/05 15:25 | Amirreza Abbasi v Jakub Kosowski | L | 3-0 |
| Challenger Ochsenhausen | 2023/12/05 16:40 | Jan Zandecki v Michal Gawlas | L | 1-3 |
| TT Elite Series | 2023/11/30 17:45 | Jan Zandecki v Josef Braun | L | 0-3 |
| TT Elite Series | 2023/11/30 16:10 | Jan Zandecki v Marcin Jadczyk | L | 0-3 |
| TT Elite Series | 2023/11/30 15:00 | Jan Zandecki v Artur Daniel | W | 3-1 |
| TT Elite Series | 2023/11/30 13:25 | Jan Zandecki v Piotr Chodorski | L | 1-3 |
| TT Elite Series | 2023/11/30 12:10 | Jan Zandecki v Grzegorz Felkel | L | 0-3 |
| TT Elite Series | 2023/11/30 11:00 | Jan Zandecki v Marcin Jadczyk | W | 3-1 |
| TT Elite Series | 2023/11/30 09:50 | Jan Zandecki v Josef Braun | L | 1-3 |