| Challenger Ochsenhausen | 2021/06/18 09:10 | Samuel Amann v Harmeet Desai | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/18 06:30 | Samuel Amann v Miguel Chamorro | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/17 09:50 | Samuel Amann v Christopher Ligocki | W | 3-2 |
| Challenger Ochsenhausen | 2021/06/17 07:10 | Sven Happek v Samuel Amann | L | 3-0 |
| Challenger Ochsenhausen | 2021/06/16 11:50 | Henning Zeptner v Samuel Amann | L | 3-1 |
| Challenger Ochsenhausen | 2021/06/16 09:50 | Samuel Amann v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/16 07:50 | Samuel Amann v Fedor Kuzmin | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/15 11:40 | Samuel Amann v Andrey Semenov | L | 0-3 |
| Challenger Ochsenhausen | 2021/08/24 11:00 | Daniel Rinderer v Dauud Cheaib | L | 2-3 |
| Challenger Ochsenhausen | 2021/08/24 07:40 | Daniel Rinderer v Amirreza Abbasi | L | 2-3 |
| Challenger Ochsenhausen | 2021/08/23 18:40 | Daniel Rinderer v Paul Lavergne | L | 2-3 |
| Challenger Ochsenhausen | 2021/08/23 17:20 | Daniel Rinderer v Evgueni Chtchetinine | L | 1-3 |
| Challenger Ochsenhausen | 2021/08/23 11:50 | Daniel Rinderer v Elia Schmid | L | 1-3 |
| Challenger Ochsenhausen | 2021/08/23 09:10 | Daniel Rinderer v Josip Huzjak | L | 1-3 |
| Challenger Ochsenhausen | 2021/08/23 06:30 | Daniel Rinderer v Liang Qiu | L | 0-3 |
| Challenger Ochsenhausen | 2021/08/10 11:00 | Daniel Rinderer v Dauud Cheaib | L | 0-3 |