| Bonn Int. Qual | 2023/05/31 10:30 | Rui Yang Ryan Tan v Jan Janostik | L | 2-1 |
| Austrian Open Qual | 2023/05/25 11:00 | Jan Janostik v Harsheel Dani | L | 0-2 |
| Austrian Open Qual | 2023/05/25 08:35 | Jan Janostik v Dhruv Kumar | W | 2-0 |
| Polish Open Qual | 2023/03/22 09:10 | Keith Mark Edison v Jan Janostik | L | 2-0 |
| Slovenia Future Series Qual | 2022/11/25 09:45 | Guilhem Hoyaux v Jan Janostik | L | 2-0 |
| Slovenia Future Series Qual | 2022/11/24 18:50 | Sebastian Mikkelsen v Jan Janostik | W | 0-2 |
| Czech Open | 2022/10/21 08:00 | Jan Janostik v Julien Scheiwiller | L | 0-2 |
| Czech Open Qual | 2022/10/20 18:40 | Maj Poboljsaj v Jan Janostik | W | 0-2 |