| Challenger - Ochsenhausen | 2020/07/07 11:00 | Dwain Schwarzer v Valerij Rakov | L | 2-3 |
| Challenger - Ochsenhausen | 2019/01/07 12:50 | Valerij Rakov v Dwain Schwarzer | W | 1-3 |
| Challenger - Ochsenhausen | 2021/07/07 09:45 | Sven Happek v Dwain Schwarzer | L | 3-2 |
| 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 | 2021/07/07 08:30 | Andriy Sitak v Valerij Rakov | W | 0-3 |
| Challenger - Ochsenhausen | 2021/06/01 11:40 | Valerij Rakov v Daniel Rinderer | L | 0-3 |
| Challenger - Ochsenhausen | 2021/06/01 09:00 | Valerij Rakov v Ahmed El-Mahdy | L | 2-3 |
| Challenger - Ochsenhausen | 2021/05/31 20:00 | Valerij Rakov v Harmeet Desai | L | 0-3 |
| Challenger - Ochsenhausen | 2021/05/31 15:20 | Valerij Rakov v Dennis Klein | L | 0-3 |
| Challenger - Ochsenhausen | 2021/05/31 12:30 | Valerij Rakov v Dauud Cheaib | L | 0-3 |
| Challenger - Ochsenhausen | 2021/05/31 09:10 | Josip Huzjak v Valerij Rakov | L | 3-0 |
| Challenger - Ochsenhausen | 2021/05/31 07:10 | Valerij Rakov v Fedor Kuzmin | L | 0-3 |