Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/03/06 14:10 | Dauud Cheaib v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/02/27 12:50 | Sven Happek v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2023/01/09 12:10 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2022/12/19 11:30 | Dauud Cheaib v Sven Happek | L | 3-1 |
| Challenger Series TT | 2022/12/15 20:50 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2022/12/05 10:50 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2022/11/28 18:10 | Sven Happek v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2022/11/17 15:30 | Dauud Cheaib v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/03/07 11:30 | Rodrigo Hidalgo v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/03/07 07:30 | Aljaz Godec v Sven Happek | W | 0-3 |
| Challenger Series TT | 2023/03/06 19:30 | Sven Happek v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2023/03/06 16:10 | Sven Happek v Peter Hribar | L | 1-3 |
| Challenger Series TT | 2023/03/06 14:10 | Dauud Cheaib v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/03/06 11:30 | Bastien Dupont v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/03/06 08:50 | Marius Henninger v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/02/28 10:50 | Sven Happek v Remy Pham | W | 3-0 |
| Challenger Series TT | 2023/03/07 14:30 | Dennis Klein v Dauud Cheaib | L | 3-2 |
| Challenger Series TT | 2023/03/07 13:05 | Dauud Cheaib v Bastien Dupont | W | 3-1 |
| Challenger Series TT | 2023/03/07 08:50 | Rodrigo Hidalgo v Dauud Cheaib | W | 1-3 |
| Challenger Series TT | 2023/03/06 20:50 | Marius Henninger v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/03/06 18:50 | Aljaz Godec v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/03/06 16:50 | Dauud Cheaib v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2023/03/06 14:10 | Dauud Cheaib v Sven Happek | W | 3-0 |
| Challenger Series TT | 2023/03/06 12:10 | Dauud Cheaib v Peter Hribar | W | 3-0 |