| TT Star Series | 2022/06/10 10:45 | Boguslav Koszyk v Jakub Seibert | W | 3-1 |
| TT Star Series | 2020/12/15 11:15 | Jakub Seibert v Boguslav Koszyk | W | 2-3 |
| TT Star Series | 2020/12/07 12:15 | Boguslav Koszyk v Jakub Seibert | W | 3-0 |
| Czech TT Star Series | 2020/10/05 08:15 | Boguslav Koszyk v Jakub Seibert | W | 3-2 |