| Qatar Open XD | 2017/10/31 15:30 | Adam Szudi v Grinninger, Thomas | W | 1-4 |
| Qatar Open XD | 2017/10/31 11:00 | Pieraert, Valentin v Grinninger, Thomas | L | 4-2 |
| Qatar Open XD | 2016/11/09 07:46 | Chen, Diogo v Grinninger, Thomas | L | 3-0 |
| Qatar Open 2019, MS | 2016/10/30 10:36 | Jesus Machado v Grinninger, Thomas | W | 0-3 |
| Qatar Open 2019, MS | 2016/10/30 09:13 | Machado, Carlos v Grinninger, Thomas | L | 3-0 |
| Qatar Open 2019, MS | 2016/10/29 17:44 | Morrison, Calum v Grinninger, Thomas | W | 0-3 |
| Qatar Open 2019, MS | 2016/10/29 13:16 | Grinninger, Thomas v Kilomo Vitta | L | 2-3 |
| Qatar Open XD | 2016/09/21 08:10 | Simon Berglund v Grinninger, Thomas | L | 3-0 |