| Hungarian Int. Qual | 2019/10/30 13:35 | Karl Kert v Jeppe Bruun Christensen | L | 0-2 |
| Hungarian Int. Qual | 2019/10/30 09:20 | Karl Kert v Mattias Xu | W | 2-1 |
| Swiss Open WD Qual | 2019/01/17 15:00 | Kaj Sjang Lu v Karl Kert | L | 2-0 |
| Swiss Open WD Qual | 2019/01/17 11:00 | Karl Kert v Jesper Toft | W | 2-0 |
| Swiss Open WD Qual | 2018/08/29 13:30 | Azmy Qowimuramadhoni v Karl Kert | L | 2-0 |
| Swiss Open WD Qual | 2018/08/29 11:05 | Niclas Borg Sigg v Karl Kert | W | 0-2 |
| Swiss Open WD Qual | 2018/08/29 08:30 | Tomas Svejda v Karl Kert | W | 1-2 |
| Swiss Open WD Qual | 2018/04/05 16:20 | Karl Kert v Kanishq M | L | 0-2 |
| Belgian Int. Qual | 2019/09/11 17:25 | Jonas Jaeger v Julien Carraggi | L | 0-2 |
| Belgian Int. Qual | 2019/09/11 12:20 | Matthias Kicklitz v Jonas Jaeger | W | 1-2 |
| Belgian Int. Qual | 2019/09/11 09:40 | Felix Hammes v Jonas Jaeger | W | 1-2 |
| Dutch Int. Qual | 2019/04/11 11:10 | Jonas Jaeger v Michael Spencer-Smith | W | 2-1 |
| Swiss Open WD Qual | 2018/01/18 11:00 | Kaj Sjang Lu v Jonas Jaeger | L | 2-1 |