| TT Star Series | 2021/04/19 09:15 | Jakub Kaucky v Jakub Seibert | L | 3-1 |
| Czech Republic Cup | 2019/11/30 15:46 | Jakub Kaucky v Jakub Seibert | W | 1-3 |
| TT Star Series | 2021/07/29 11:45 | Tomas Tregler v Jakub Seibert | L | 3-0 |
| TT Star Series | 2021/07/29 09:45 | Tomas Konecny v Jakub Seibert | L | 3-0 |
| TT Star Series | 2021/07/29 07:10 | Dmitrij Prokopcov v Jakub Seibert | L | 3-0 |
| TT Star Series | 2021/07/13 11:15 | Matteo Mutti v Jakub Seibert | L | 3-0 |
| TT Star Series | 2021/07/13 09:45 | Dmitrij Prokopcov v Jakub Seibert | L | 3-0 |
| TT Star Series | 2021/07/13 07:45 | Thomas Keinath v Jakub Seibert | L | 3-1 |
| TT Star Series | 2021/07/12 13:15 | Tomas Beran v Jakub Seibert | W | 0-3 |
| TT Star Series | 2021/07/12 10:45 | Miroslav Sklensky v Jakub Seibert | L | 3-0 |
| TT Star Series | 2021/07/29 10:45 | Petr David v Jakub Kaucky | L | 3-0 |
| TT Star Series | 2021/07/29 09:15 | Tomas Tregler v Jakub Kaucky | L | 3-0 |
| TT Star Series | 2021/07/29 06:00 | Jakub Zelinka v Jakub Kaucky | L | 3-0 |
| TT Star Series | 2021/07/20 10:45 | Petr Husnik v Jakub Kaucky | L | 3-1 |
| TT Star Series | 2021/07/20 08:15 | Tomas Konecny v Jakub Kaucky | L | 3-0 |
| TT Star Series | 2021/07/20 06:35 | Jiri Martinko v Jakub Kaucky | L | 3-1 |
| TT Star Series | 2021/07/19 13:45 | Jakub Kaucky v Michal Bankosz | L | 1-3 |
| TT Star Series | 2021/07/19 11:45 | Jakub Kaucky v Maxime Dieudonne | W | 3-0 |