| Challenger Ochsenhausen | 2021/06/18 11:25 | Dauud Cheaib v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2021/06/16 07:10 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/03/31 13:10 | Dauud Cheaib v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2021/03/15 08:50 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/03/11 08:10 | Dauud Cheaib v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/02/24 07:30 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/02/10 12:50 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/01/27 08:50 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/07/14 06:30 | Sven Happek v Dennis Klein | W | 3-2 |
| Challenger Ochsenhausen | 2021/07/09 08:30 | Sven Happek v Valerij Rakov | L | 2-3 |
| Challenger Ochsenhausen | 2021/07/09 06:30 | Jeet Chandra v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/07/08 10:30 | Fedor Kuzmin v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/07/08 08:30 | Andriy Sitak v Sven Happek | L | 3-2 |
| Challenger Ochsenhausen | 2021/07/07 13:10 | Sven Happek v Evgueni Chtchetinine | L | 2-3 |
| Challenger Ochsenhausen | 2021/07/07 11:00 | Sven Happek v Snehit Suravajjula | L | 0-3 |
| Challenger Ochsenhausen | 2021/07/07 09:45 | Sven Happek v Dwain Schwarzer | W | 3-2 |
| Challenger Ochsenhausen | 2021/07/14 07:10 | Dauud Cheaib v Andrei Putuntica | W | 3-2 |
| Challenger Ochsenhausen | 2021/06/29 14:40 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Ochsenhausen | 2021/06/29 13:15 | Dauud Cheaib v Andrey Semenov | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/29 10:20 | Dauud Cheaib v Alexander Valuch | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/29 07:00 | Dauud Cheaib v Andrey Semenov | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/28 18:00 | Dauud Cheaib v Dennis Klein | L | 1-3 |
| Challenger Ochsenhausen | 2021/06/28 15:20 | Christopher Ligocki v Dauud Cheaib | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/28 11:50 | Liang Qiu v Dauud Cheaib | W | 0-3 |