| Scottish Open Qual | 2019/11/21 12:40 | Christo Popov v Leon Seiwald | L | 2-0 |
| Scottish Open Qual | 2019/11/21 10:00 | Leon Seiwald v Sam Parsons | W | 2-1 |
| Irish Open Qual | 2019/11/13 14:30 | Daniel Nikolov v Leon Seiwald | L | 2-0 |
| Irish Open Qual | 2019/11/13 11:05 | Leon Seiwald v Victor Pang | W | 2-0 |
| Hungarian Int. Qual | 2019/10/30 17:10 | Leon Seiwald v Tobias Kuenzi | L | 0-2 |
| Polish Int. | 2019/09/21 09:55 | Ivan Rusev v Leon Seiwald | L | 2-0 |
| Polish Int. | 2019/09/20 10:20 | Leon Seiwald v Joonas Korhonen | W | 2-1 |
| Belgian Int. | 2019/09/12 13:00 | Luis Enrique Penalver v Leon Seiwald | L | 2-1 |
| European Team Championships | 2020/02/11 09:00 | Joshua Magee v Mateusz Dubowski | W | 1-2 |
| Polish Int. | 2019/09/20 13:40 | Daniel Nikolov v Mateusz Dubowski | L | 2-1 |
| Polish Int. Qual | 2019/09/19 16:20 | Mateusz Dubowski v Nikolaj Mangor | W | 2-0 |
| Polish Int. Qual | 2019/09/19 12:50 | Martin Bundgaard v Mateusz Dubowski | W | 0-2 |
| Polish Int. Qual | 2019/09/19 09:20 | Mateusz Dubowski v Gasper Krivec | W | 2-0 |
| Belarus Int. Qual | 2019/08/30 07:40 | Mateusz Dubowski v Evgeny Chertilin | W | 2-0 |
| Belarus Int. Qual | 2019/08/29 11:00 | Mateusz Dubowski v Oleksandr Kolesnik | W | 2-0 |
| Hellas Open | 2019/08/09 12:30 | Gergely Krausz v Mateusz Dubowski | L | 2-0 |