| Qatar Open XD | 2017/11/02 14:00 | Shunsuke Togami v Pak Nam Ng | L | 1-4 |
| Qatar Open XD | 2017/08/15 12:15 | Shunsuke Togami v Stefan Todorov | W | 4-0 |
| Qatar Open XD | 2017/11/02 10:20 | Dennis Klein v Sadi Ismailov | W | 3-2 |
| Qatar Open XD | 2017/04/27 11:30 | Andreas Levenko v Dennis Klein | L | 4-1 |
| Qatar Open XD | 2017/02/02 08:47 | Dennis Klein v Tomasz Kotowski | L | 2-4 |
| Qatar Open Women | 2016/12/18 15:22 | Bohumil Vozicky v Dennis Klein | L | 3-0 |
| Qatar Open Women | 2016/12/15 20:09 | Tomas Tregler v Dennis Klein | L | 3-1 |
| Qatar Open Women | 2016/12/15 18:48 | Aleksandar Karakasevic v Dennis Klein | L | 3-0 |
| Qatar Open Women | 2016/09/22 17:04 | Dennis Klein v Florent Lambiet | L | 1-4 |
| Qatar Open Women | 2016/09/22 13:23 | Cazuo Matsumoto v Dennis Klein | W | 2-4 |