Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/07/10 06:30 | Johannes Willeke v Samuel Amann | W | 3-1 |
| Challenger Series TT | 2023/07/07 09:50 | Johannes Willeke v David Reitspies | L | 0-3 |
| Challenger Series TT | 2023/07/07 06:30 | Johannes Willeke v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2023/07/06 17:50 | Johannes Willeke v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2023/07/06 16:30 | Johannes Willeke v Mathias Golab | W | 3-0 |
| Challenger Series TT | 2023/07/06 11:50 | Johannes Willeke v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2023/07/06 09:10 | Johannes Willeke v Hannes Hormann | L | 2-3 |
| Challenger Series TT | 2023/07/06 06:30 | Johannes Willeke v Liang Qiu | W | 3-2 |
| Challenger Series TT | 2023/07/10 07:10 | Damian Zech v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2023/06/27 09:10 | Damian Zech v Carlo Rossi | L | 1-3 |
| Challenger Series TT | 2023/06/26 19:50 | Damian Zech v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/06/26 17:10 | Damian Zech v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2023/06/26 14:30 | Makoto Nogami v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/06/26 11:50 | Marius Henninger v Damian Zech | W | 2-3 |
| Challenger Series TT | 2023/06/26 09:50 | Damian Zech v Sven Happek | L | 2-3 |
| Challenger Series TT | 2023/06/26 07:50 | Damian Zech v Benjamin Fruchart | L | 0-3 |