| Challenger - Ochsenhausen | 2021/05/06 10:30 | Carlos Muhlbach v Michael Engelhardt | L | 3-0 |
| Challenger - Ochsenhausen | 2021/05/11 10:20 | Michael Engelhardt v Carlo Rossi | L | 0-3 |
| Challenger - Ochsenhausen | 2021/05/11 07:00 | Michael Engelhardt v Fedor Kuzmin | L | 0-3 |
| Challenger - Ochsenhausen | 2021/05/10 18:00 | Michael Engelhardt v Florian Bluhm | L | 0-3 |
| Challenger - Ochsenhausen | 2021/05/10 15:20 | Juri Grauer v Michael Engelhardt | W | 0-3 |
| Challenger - Ochsenhausen | 2021/05/10 11:50 | Dennis Klein v Michael Engelhardt | L | 3-2 |
| Challenger - Ochsenhausen | 2021/05/10 09:50 | Michael Engelhardt v Samuel Amann | W | 3-0 |
| Challenger - Ochsenhausen | 2021/05/10 07:50 | Michael Engelhardt v Josip Huzjak | L | 0-3 |
| Challenger - Ochsenhausen | 2021/05/07 07:50 | Michael Engelhardt v Carlo Rossi | L | 1-3 |
| Challenger - Ochsenhausen | 2021/06/08 14:40 | Dauud Cheaib v Carlos Muhlbach | L | 3-0 |
| Challenger - Ochsenhausen | 2021/06/08 13:15 | Felix Wetzel v Carlos Muhlbach | W | 0-3 |
| Challenger - Ochsenhausen | 2021/06/08 11:40 | Florian Bluhm v Carlos Muhlbach | W | 2-3 |
| Challenger - Ochsenhausen | 2021/06/08 07:40 | Felix Wetzel v Carlos Muhlbach | L | 3-0 |
| Challenger - Ochsenhausen | 2021/06/07 19:20 | Carlos Muhlbach v Johannes Schnabel | W | 3-0 |
| Challenger - Ochsenhausen | 2021/06/07 16:00 | Carlos Muhlbach v Marius Henninger | W | 3-0 |
| Challenger - Ochsenhausen | 2021/06/07 14:00 | Andrey Semenov v Carlos Muhlbach | W | 0-3 |
| Challenger - Ochsenhausen | 2021/06/07 10:30 | Dauud Cheaib v Carlos Muhlbach | L | 3-0 |