Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/22 08:30 | Dauud Cheaib v Carlo Rossi | W | 3-1 |
| Challenger Series TT | 2023/06/16 06:30 | Norbert Tauler v Dauud Cheaib | L | 3-2 |
| Challenger Series TT | 2023/06/15 17:10 | Dauud Cheaib v Liang Qiu | W | 3-1 |
| Challenger Series TT | 2023/06/15 13:50 | Dauud Cheaib v Jose Guillot | W | 3-1 |
| Challenger Series TT | 2023/06/15 12:30 | Zengyi Wang v Dauud Cheaib | L | 3-0 |
| Challenger Series TT | 2023/06/15 10:30 | Enio Mendes v Dauud Cheaib | L | 3-2 |
| Challenger Series TT | 2023/06/15 07:50 | Yannick Vostes v Dauud Cheaib | L | 3-0 |
| Challenger Series TT | 2023/05/30 07:50 | Carlo Rossi v Dauud Cheaib | L | 3-1 |
| Challenger Series TT | 2023/06/22 06:30 | Tobias Slanina v Johannes Willeke | L | 3-2 |
| Challenger Series TT | 2023/06/20 08:30 | Jose Guillot v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/06/20 07:10 | Aljaz Godec v Johannes Willeke | L | 3-0 |
| Challenger Series TT | 2023/06/19 17:10 | Marco Stefanidis v Johannes Willeke | L | 3-0 |
| Challenger Series TT | 2023/06/19 15:10 | Carlo Rossi v Johannes Willeke | L | 3-0 |
| Challenger Series TT | 2023/06/19 12:30 | Sven Happek v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/06/19 11:10 | Akito Itagaki v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/06/19 06:30 | Dennis Klein v Johannes Willeke | L | 3-0 |