| Challenger Ochsenhausen | 2021/04/12 09:10 | Florian Bluhm v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/04/12 07:10 | Dennis Klein v Andrey Semenov | L | 1-3 |
| Challenger Ochsenhausen | 2021/04/09 13:30 | Jiri Martinko v Dennis Klein | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/09 12:05 | Dauud Cheaib v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/04/09 10:30 | Miguel Chamorro v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/04/08 12:30 | Dennis Klein v Dillon Chambers | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/08 11:10 | Dimitrije Levajac v Dennis Klein | W | 2-3 |
| Challenger Ochsenhausen | 2021/04/08 09:10 | Evgueni Chtchetinine v Dennis Klein | L | 3-1 |
| Challenger Ochsenhausen | 2021/04/12 11:10 | Josip Huzjak v Marius Henninger | L | 3-2 |
| Challenger Ochsenhausen | 2021/04/12 06:30 | Florian Bluhm v Marius Henninger | L | 3-0 |
| Challenger Ochsenhausen | 2021/01/18 15:00 | Marius Henninger v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/01/18 12:10 | Marius Henninger v Jonathan Thimon | L | 0-3 |
| Challenger Ochsenhausen | 2021/01/18 09:30 | Josip Huzjak v Marius Henninger | L | 3-1 |
| Challenger Ochsenhausen | 2021/01/08 11:30 | Marius Henninger v Evgueni Chtchetinine | L | 1-3 |
| Challenger Ochsenhausen | 2021/01/08 08:50 | Marius Henninger v Carlos Muhlbach | L | 1-3 |
| Challenger Ochsenhausen | 2021/01/07 12:50 | Marius Henninger v Liang Qiu | L | 0-3 |