| TT Star Series | 2021/05/25 09:15 | Tomas Konecny v Jakub Kleprlik | L | 3-0 |
| TT Star Series | 2021/05/24 12:45 | Dmitrij Prokopcov v Jakub Kleprlik | W | 2-3 |
| TT Star Series | 2021/05/24 11:15 | Jakub Kleprlik v Ondrej Kveton | W | 3-0 |
| TT Star Series | 2021/05/24 07:45 | Jakub Kleprlik v David Reitspies | L | 0-3 |
| Europe Cup | 2021/05/14 17:55 | Andreas Levenko v Jakub Kleprlik | L | 3-2 |
| Europe Cup | 2021/05/13 15:50 | Jakub Kleprlik v Mikhail Paikov | W | 3-2 |
| Europe Cup | 2021/05/13 14:00 | Jakub Kleprlik v Danila Travin | L | 1-3 |
| Europe Cup | 2021/05/12 17:15 | Jakub Kleprlik v Tomas Konecny | L | 0-3 |
| TT Star Series | 2021/05/25 09:45 | Ondrej Kveton v Jakub Slapnicka | L | 3-1 |
| TT Star Series | 2021/05/25 07:45 | Tomas Konecny v Jakub Slapnicka | L | 3-0 |
| TT Star Series | 2021/05/24 13:15 | Jakub Seibert v Jakub Slapnicka | L | 3-2 |
| TT Star Series | 2021/05/24 10:45 | Michal Benes v Jakub Slapnicka | L | 3-1 |
| TT Star Series | 2021/05/24 09:15 | David Reitspies v Jakub Slapnicka | L | 3-0 |
| TT Star Series | 2021/05/24 06:00 | Dmitrij Prokopcov v Jakub Slapnicka | L | 3-0 |
| TT Star Series | 2021/05/18 11:15 | Jakub Slapnicka v Filip Cernota | L | 0-3 |
| TT Star Series | 2021/05/18 09:15 | Miroslav Horejsi v Jakub Slapnicka | L | 3-0 |