| TT Star Series | 2021/04/20 09:45 | David Reitspies v Jakub Seibert | W | 3-0 |
| TT Star Series | 2021/04/12 08:15 | Jakub Seibert v David Reitspies | W | 0-3 |
| TT Star Series | 2021/04/06 12:44 | David Reitspies v Jakub Seibert | W | 3-0 |
| TT Star Series | 2021/04/06 08:15 | Jakub Seibert v David Reitspies | W | 1-3 |
| TT Star Series | 2021/03/30 09:45 | David Reitspies v Jakub Seibert | W | 3-1 |
| Others | 2021/03/26 13:06 | David Reitspies v Jakub Seibert | W | 3-1 |
| TT Star Series | 2021/03/25 13:45 | David Reitspies v Jakub Seibert | W | 3-0 |
| TT Star Series | 2021/02/26 08:10 | Jakub Seibert v David Reitspies | W | 1-3 |
| TT Star Series | 2021/05/24 09:15 | David Reitspies v Jakub Slapnicka | W | 3-0 |
| TT Star Series | 2021/05/24 07:45 | Jakub Kleprlik v David Reitspies | W | 0-3 |
| TT Star Series | 2021/05/21 14:35 | David Reitspies v Petr David | W | 3-0 |
| TT Star Series | 2021/05/21 13:18 | David Reitspies v Jakub Zelinka | W | 3-0 |
| TT Star Series | 2021/05/21 10:45 | David Reitspies v Oleksandr Tymofieiev | W | 3-0 |
| TT Star Series | 2021/05/21 09:15 | David Reitspies v Jakub Kaucky | W | 3-1 |
| TT Star Series | 2021/05/21 07:45 | David Reitspies v Jakub Zelinka | W | 3-2 |
| TT Star Series | 2021/05/20 12:15 | Petr Husnik v David Reitspies | W | 0-3 |
| TT Star Series | 2021/05/24 07:10 | Tomas Konecny v Jakub Seibert | L | 3-1 |
| TT Star Series | 2021/05/11 09:45 | David Prusa v Jakub Seibert | W | 0-3 |
| TT Star Series | 2021/05/11 08:45 | Michal Benes v Jakub Seibert | L | 3-2 |
| TT Star Series | 2021/05/11 07:10 | Jakub Seibert v Frantisek Onderka | L | 1-3 |
| TT Star Series | 2021/05/10 13:05 | Jakub Seibert v Miroslav Horejsi | L | 0-3 |
| TT Star Series | 2021/05/10 11:35 | Tomas Martinko v Jakub Seibert | L | 3-1 |
| TT Star Series | 2021/05/10 09:45 | Ondrej Bajger v Jakub Seibert | W | 1-3 |
| TT Star Series | 2021/05/10 07:10 | Jiri Vrablik v Jakub Seibert | L | 3-2 |