| Challenger Ochsenhausen | 2021/04/13 14:40 | Dauud Cheaib v Dennis Klein | L | 3-2 |
| Challenger Ochsenhausen | 2021/04/13 13:00 | Dennis Klein v Evgueni Chtchetinine | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/13 11:40 | Dennis Klein v Miguel Chamorro | W | 3-0 |
| Challenger Ochsenhausen | 2021/04/13 09:00 | Dennis Klein v Josip Huzjak | W | 3-2 |
| Challenger Ochsenhausen | 2021/04/12 20:00 | Dennis Klein v Evgueni Chtchetinine | W | 3-2 |
| Challenger Ochsenhausen | 2021/04/12 15:20 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Ochsenhausen | 2021/04/12 12:30 | Dennis Klein v Marius Henninger | W | 3-0 |
| Challenger Ochsenhausen | 2021/04/12 09:10 | Florian Bluhm v Dennis Klein | W | 1-3 |
| Dusseldorf Masters | 2020/08/14 17:20 | Cedric Meissner v Daniel Rinderer | L | 4-3 |