| TT Star Series | 2022/12/15 10:45 | Jakub Seibert v Boguslaw Koszyk | L | 3-1 |
| TT Star Series | 2021/11/18 11:45 | Boguslaw Koszyk v Jakub Seibert | W | 3-0 |
| TT Star Series | 2023/02/13 12:45 | Alvaro Gainza v Boguslaw Koszyk | W | 2-3 |
| TT Star Series | 2023/02/13 10:45 | Jose Gulliot v Boguslaw Koszyk | W | 0-3 |
| TT Star Series | 2023/02/13 08:10 | Viktor Yefimov v Boguslaw Koszyk | W | 0-3 |
| TT Star Series | 2022/12/15 12:15 | Ondrej Bajger v Boguslaw Koszyk | L | 3-2 |
| TT Star Series | 2022/12/15 10:45 | Jakub Seibert v Boguslaw Koszyk | L | 3-1 |
| TT Star Series | 2022/12/15 08:45 | Petr David v Boguslaw Koszyk | L | 3-1 |
| TT Star Series | 2022/12/14 14:15 | Petr Husnik v Boguslaw Koszyk | W | 1-3 |
| TT Star Series | 2022/12/14 11:45 | Patrik Klos v Boguslaw Koszyk | L | 3-0 |
| TT Star Series | 2023/02/13 11:45 | David Reitspies v Jakub Seibert | L | 3-0 |
| TT Star Series | 2023/02/13 10:15 | Alvaro Gainza v Jakub Seibert | W | 0-3 |
| TT Star Series | 2023/02/13 07:00 | Mohamed Shouman v Jakub Seibert | L | 3-0 |
| Czech Extraleague | 2023/02/03 17:40 | Radim Moravek v Jakub Seibert | L | 3-1 |
| TT Star Series | 2023/01/31 12:15 | Jakub Zelinka v Jakub Seibert | L | 3-0 |
| TT Star Series | 2023/01/31 10:45 | Tomas Konecny v Jakub Seibert | L | 3-0 |
| TT Star Series | 2023/01/31 08:45 | Filip Zeljko v Jakub Seibert | L | 3-0 |
| TT Star Series | 2023/01/30 14:05 | Rafael De Las Heras v Jakub Seibert | L | 3-2 |