| Sudirman Cup | 2021/09/26 13:20 | Kwang Hee Heo v Max Weisskirchen | L | 2-1 |
| Spain Masters | 2021/05/20 11:00 | Shesar Hiren Rhustavito v Max Weisskirchen | L | 2-0 |
| Spain Masters | 2021/05/19 08:15 | Jun Hao Leong v Max Weisskirchen | W | 1-2 |
| Portuguese Int. | 2021/05/09 15:00 | Ditlev Jaeger Holm v Max Weisskirchen | L | 2-0 |
| Portuguese Int. | 2021/05/09 09:00 | Niluka Karunaratne v Max Weisskirchen | W | 0-2 |
| Portuguese Int. | 2021/05/08 14:40 | Alex Lane v Max Weisskirchen | W | 1-2 |
| Portuguese Int. | 2021/05/08 09:00 | Magnus Johannesen v Max Weisskirchen | W | 0-2 |
| Portuguese Int. | 2021/05/07 15:30 | Milan Ludik v Max Weisskirchen | W | 1-2 |