Stadium: Ochsenhausen, Germany Round: 2
| Challenger Series TT | 2023/12/19 11:00 | Benjamin Fruchart v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2023/12/19 09:30 | Akito Itagaki v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/12/19 08:10 | Adrien Coton v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/12/18 18:10 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/12/18 16:10 | Benjamin Fruchart v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2023/12/18 13:30 | Liang Qiu v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2023/12/18 12:10 | Damien Llorca v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2023/12/18 07:30 | Daniel Rinderer v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2022/11/15 10:10 | Jeet Chandra v Mohammed Javad Sohrabi | W | 1-3 |
| Challenger Series TT | 2022/11/15 08:10 | Mohammed Javad Sohrabi v Florian Bluhm | L | 0-3 |
| Challenger Series TT | 2022/11/14 20:10 | Nico Longhino v Mohammed Javad Sohrabi | L | 3-2 |
| Challenger Series TT | 2022/11/14 17:30 | Michael Engelhardt v Mohammed Javad Sohrabi | W | 2-3 |
| Challenger Series TT | 2022/11/14 14:50 | Mohammed Javad Sohrabi v Aljaz Godec | L | 1-3 |
| Challenger Series TT | 2022/11/14 11:30 | Mohammed Javad Sohrabi v Manush Shah | L | 0-3 |
| Challenger Series TT | 2022/11/14 09:30 | Mohammed Javad Sohrabi v Mohammadali Rouintanesfahani | W | 3-0 |