| Norwegian Int. Qual | 2019/11/07 11:30 | Karl Kert v Jonas Jaeger | W | 0-2 |
| Portugal Int. Qual | 2022/03/10 09:40 | Luka Ban v Jonas Jaeger | W | 0-2 |
| Slovenia Future Series Qual | 2021/11/25 18:30 | Jonas Jaeger v Andi Fadel Muhammad | L | 0-2 |
| Slovenia Future Series Qual | 2021/11/25 14:25 | Jonas Jaeger v Maksymilian Danielak | W | 2-0 |
| Slovenia Future Series Qual | 2021/11/25 12:40 | Jonas Jaeger v Jin Hong Teh | W | 2-0 |
| Denmark Masters Qual | 2021/08/05 13:10 | Magnus Johannesen v Jonas Jaeger | L | 2-0 |
| Denmark Masters Qual | 2021/08/05 07:35 | Samuel Cassar v Jonas Jaeger | W | 0-2 |
| Spain Int Qual | 2021/06/17 08:20 | Philip I Klindt v Jonas Jaeger | L | 2-1 |
| Spain Int Qual | 2021/06/16 11:00 | Nicolas A. Mueller v Jonas Jaeger | W | 0-2 |
| Portugal Int. Qual | 2022/03/10 09:40 | Karl Kert v Arthur Boudier | W | 2-0 |
| Slovak Open | 2022/03/04 09:50 | Jiri Kral v Karl Kert | L | 2-0 |
| Swedish Open Qual | 2022/01/20 16:40 | Dominik Kwinta v Karl Kert | L | 2-0 |
| Swedish Open Qual | 2022/01/20 12:40 | Karl Kert v Mikolaj Szymanowski | W | 2-1 |
| Swedish Open Qual | 2022/01/20 09:40 | Karl Kert v Adrien Slegers | W | 2-0 |
| Estonian Int. | 2022/01/14 11:40 | Karl Kert v Niluka Karunaratne | L | 0-2 |
| Polish Int. Qual | 2021/09/23 13:20 | Tarun Reddy Katam v Karl Kert | L | 2-0 |
| Polish Int. Qual | 2021/09/23 12:00 | Gal Bizjak v Karl Kert | W | 0-2 |