| Challenger - Ochsenhausen | 2020/07/06 06:30 | Dwain Schwarzer v Sven Happek | W | 1-3 |
| Challenger - Ochsenhausen | 2020/03/18 08:50 | Dwain Schwarzer v Sven Happek | L | 3-0 |
| Challenger - Ochsenhausen | 2020/03/16 12:50 | Dwain Schwarzer v Sven Happek | W | 1-3 |
| Challenger - Ochsenhausen | 2021/06/18 12:50 | Sven Happek v Harmeet Desai | L | 0-3 |
| Challenger - Ochsenhausen | 2021/06/18 11:25 | Dauud Cheaib v Sven Happek | L | 3-1 |
| Challenger - Ochsenhausen | 2021/06/18 09:50 | Sven Happek v Fedor Kuzmin | L | 2-3 |
| Challenger - Ochsenhausen | 2021/06/18 07:10 | Sven Happek v Harmeet Desai | L | 1-3 |
| Challenger - Ochsenhausen | 2021/06/17 10:30 | Sven Happek v Miguel Chamorro | L | 2-3 |
| Challenger - Ochsenhausen | 2021/06/17 07:10 | Sven Happek v Samuel Amann | W | 3-0 |
| Challenger - Ochsenhausen | 2021/06/16 12:30 | Sven Happek v Christopher Ligocki | W | 3-1 |
| Challenger - Ochsenhausen | 2021/06/16 09:10 | Henning Zeptner v Sven Happek | W | 0-3 |
| Challenger - Ochsenhausen | 2021/07/06 10:20 | Dwain Schwarzer v Maciej Kubik | L | 0-3 |
| Challenger - Ochsenhausen | 2021/07/06 07:00 | Dwain Schwarzer v Alessandro Baciocchi | W | 3-1 |
| Challenger - Ochsenhausen | 2021/07/05 18:00 | Dwain Schwarzer v Alexander Valuch | L | 2-3 |
| Challenger - Ochsenhausen | 2021/07/05 15:20 | Jeet Chandra v Dwain Schwarzer | L | 3-0 |
| Challenger - Ochsenhausen | 2021/07/05 11:50 | Josip Huzjak v Dwain Schwarzer | W | 0-3 |
| Challenger - Ochsenhausen | 2021/07/05 09:50 | Dwain Schwarzer v Snehit Suravajjula | L | 0-3 |
| Challenger - Ochsenhausen | 2021/07/05 07:50 | Dwain Schwarzer v Harmeet Desai | L | 0-3 |
| Challenger - Ochsenhausen | 2020/11/17 12:00 | Hector Gatica v Dwain Schwarzer | W | 0-3 |