Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/22 16:30 | Tobias Slanina v Carlo Rossi | L | 0-3 |
| Challenger Series TT | 2023/06/22 11:50 | Tobias Slanina v Sven Happek | W | 3-2 |
| Challenger Series TT | 2023/06/22 09:10 | Tobias Slanina v Dennis Klein | L | 2-3 |
| Challenger Series TT | 2023/06/22 06:30 | Tobias Slanina v Johannes Willeke | W | 3-2 |
| Challenger Series TT | 2023/06/09 09:10 | Tobias Slanina v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/06/08 19:50 | Tobias Slanina v Akito Itagaki | L | 0-3 |
| Challenger Series TT | 2023/06/08 17:10 | Tobias Slanina v Marco Stefanidis | W | 3-1 |
| Challenger Series TT | 2023/06/08 14:30 | Florian Bluhm v Tobias Slanina | L | 3-1 |
| Challenger Series TT | 2023/06/22 15:50 | Dauud Cheaib v Samuel Amann | W | 3-1 |
| Challenger Series TT | 2023/06/22 13:10 | Dauud Cheaib v Ihor Zavadskyi | W | 3-1 |
| Challenger Series TT | 2023/06/22 11:10 | Dauud Cheaib v Johannes Willeke | W | 3-0 |
| 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 |