| Qatar Open Women | 2017/09/01 19:55 | Steffen Mengel v Daniel Habesohn | L | 2-3 |
| Qatar Open Women | 2017/09/01 18:04 | Steffen Mengel v Ovidiu Ionescu | L | 0-3 |
| Qatar Open XD | 2017/04/28 12:55 | Steffen Mengel v Aleksey Liventsov | L | 0-4 |
| Qatar Open XD | 2017/04/20 04:45 | Steffen Mengel v Maharu Yoshimura | L | 3-4 |
| Qatar Open | 2017/02/23 12:10 | Marcos Freitas v Steffen Mengel | L | 4-1 |
| Qatar Open XD | 2017/02/22 14:28 | Cheng-Ting Liao v Steffen Mengel | W | 3-4 |
| Qatar Open Women | 2017/02/17 06:15 | Joao Geraldo v Steffen Mengel | L | 4-0 |
| Qatar Open Women | 2017/01/19 20:30 | Quadri Aruna v Steffen Mengel | L | 4-2 |
| Qatar Open XD | 2017/07/02 10:15 | Hung Chieh Chiang v Thomas Keinath | L | 4-1 |
| Qatar Open XD | 2017/05/05 18:30 | Hugo Calderano v Thomas Keinath | L | 4-3 |
| Qatar Open XD | 2017/05/04 19:20 | Thomas Keinath v Leonardo Fogaca | W | 4-0 |
| Qatar Open XD | 2017/05/04 13:00 | Thomas Keinath v Israel Barreto | W | 4-1 |
| Qatar Open XD | 2016/11/16 12:19 | Thomas Keinath v Chuqin Wang | L | 0-4 |