| Katar Open - Damen | 2019/03/07 15:20 | Thomas Grininger v Tomas Polansky | L | 0-4 |
| Katar Open - Damen | 2019/03/07 11:30 | Thomas Grininger v Alexandru Manole | L | 3-4 |
| U21 - Oman Open - Damen | 2019/02/13 09:35 | Thomas Grininger v Amir Hossein Hodaei | L | 0-3 |
| Katar Open - Damen | 2018/12/04 21:13 | Thomas Grininger v Bence Majoros | L | 0-3 |
| Qatar Open - Gemischtes Doppel | 2018/11/06 10:40 | Thomas Grininger v Marcelo Aguirre | L | 0-4 |
| Tschechien - Extraleague | 2018/10/23 15:25 | Thomas Grininger v Florian Cnudde | L | 1-4 |
| Qatar Open - Gemischtes Doppel | 2018/03/14 08:00 | Thomas Grininger v Przemyslaw Walaszek | W | 3-1 |
| Qatar Open - Gemischtes Doppel | 2018/03/13 14:20 | Thomas Grininger v Laurens Devos | L | 2-3 |