| Qatar Open Women | 2017/03/07 17:00 | Adam Szudi v Claus Nielsen | L | 3-0 |
| Qatar Open XD | 2017/02/03 16:27 | Sadi Ismailov v Claus Nielsen | L | 4-2 |
| Qatar Open XD | 2017/02/02 13:19 | David Reitspies v Claus Nielsen | W | 3-4 |
| Qatar Open XD | 2017/01/17 08:15 | Rares Sipos v Claus Nielsen | L | 3-0 |
| Qatar Open Women | 2016/12/16 20:21 | Claus Nielsen v Fedor Kuzmin | W | 3-0 |
| Qatar Open Women | 2016/12/02 19:27 | Christophe Legout v Claus Nielsen | L | 3-1 |
| Qatar Open Women | 2016/11/25 18:51 | Claus Nielsen v Hugo Calderano | L | 0-3 |
| Qatar Open Women | 2016/11/25 16:37 | Claus Nielsen v Yuto Muramatsu | L | 2-3 |