| Challenger Ochsenhausen | 2021/07/08 10:30 | Fedor Kuzmin v Sven Happek | W | 3-0 |
| Challenger Ochsenhausen | 2021/07/08 07:10 | Fedor Kuzmin v Jeet Chandra | W | 3-2 |
| Challenger Ochsenhausen | 2021/07/07 12:30 | Fedor Kuzmin v Valerij Rakov | W | 3-0 |
| Challenger Ochsenhausen | 2021/07/07 10:10 | Andriy Sitak v Fedor Kuzmin | W | 1-3 |
| Challenger Ochsenhausen | 2021/07/07 08:55 | Fedor Kuzmin v Evgueni Chtchetinine | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/18 13:30 | Dauud Cheaib v Fedor Kuzmin | L | 3-2 |
| Challenger Ochsenhausen | 2021/06/18 13:05 | Harmeet Desai v Fedor Kuzmin | W | 2-3 |
| Challenger Ochsenhausen | 2021/06/18 09:50 | Sven Happek v Fedor Kuzmin | W | 2-3 |
| Challenger Ochsenhausen | 2021/07/08 11:50 | Andriy Sitak v Dwain Schwarzer | L | 3-0 |
| Challenger Ochsenhausen | 2021/07/08 09:10 | Dwain Schwarzer v Evgueni Chtchetinine | L | 0-3 |
| Challenger Ochsenhausen | 2021/07/08 06:30 | Dwain Schwarzer v Snehit Suravajjula | L | 0-3 |
| Challenger Ochsenhausen | 2021/07/07 11:25 | Dwain Schwarzer v Valerij Rakov | W | 3-2 |
| 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 |