| Polish Int. - Kval | 2022/09/21 09:00 | Ze Xi Sean Ngu v Michal Walentek | L | 2-0 |
| Bonn Int. - Kval | 2022/06/15 09:00 | Christopher Klauer v Michal Walentek | L | 2-0 |
| Czech Open - Kval | 2021/10/21 10:15 | Valentin Singer v Michal Walentek | L | 2-0 |
| Polish Int. - Kval | 2021/09/23 11:00 | Gustav Andree v Michal Walentek | L | 2-0 |
| Litauen Int. | 2021/06/11 11:30 | Michal Walentek v Cristian Savin | L | 1-2 |
| Austrian Open - Kval | 2021/05/27 10:10 | David K Kristensen v Michal Walentek | L | 2-0 |
| Polish Open - Kval | 2021/03/25 12:00 | Dimitar Yanakiev v Michal Walentek | L | 2-0 |
| Slovak Open Qual | 2020/02/26 09:55 | Michal Walentek v Alexander Rydstrom | L | 1-2 |
| Canada Open | 2022/09/28 00:20 | Kelvin Chong v Yan Kit Wong | L | 2-1 |
| Litauen Int. - Kval | 2022/06/09 07:10 | Yan Kit Wong v Alvaro Leal | L | 0-2 |