Estadio: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/20 13:30 | Dennis Klein v Carlo Rossi | W | 3-1 |
| Challenger Series TT | 2023/06/20 06:30 | Dennis Klein v Carlo Rossi | L | 0-3 |
| Challenger de Ochsenhausen | 2021/05/11 12:35 | Carlo Rossi v Dennis Klein | W | 2-3 |
| Challenger de Ochsenhausen | 2021/05/10 17:20 | Dennis Klein v Carlo Rossi | L | 0-3 |
| Challenger Series TT | 2023/06/22 14:30 | Dennis Klein v Sven Happek | W | 3-0 |
| Challenger Series TT | 2023/06/22 12:30 | Dennis Klein v Johannes Willeke | W | 3-0 |
| Challenger Series TT | 2023/06/22 09:10 | Tobias Slanina v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2023/06/22 07:10 | Dennis Klein v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/06/20 13:30 | Dennis Klein v Carlo Rossi | W | 3-1 |
| Challenger Series TT | 2023/06/20 11:25 | Dennis Klein v Jose Guillot | W | 3-0 |
| Challenger Series TT | 2023/06/20 09:50 | Dennis Klein v Jose Guillot | W | 3-0 |
| Challenger Series TT | 2023/06/20 06:30 | Dennis Klein v Carlo Rossi | L | 0-3 |
| Challenger Series TT | 2023/06/22 16:30 | Tobias Slanina v Carlo Rossi | W | 0-3 |
| Challenger Series TT | 2023/06/22 13:50 | Carlo Rossi v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/06/22 10:30 | Carlo Rossi v Ihor Zavadskyi | W | 3-1 |
| Challenger Series TT | 2023/06/22 08:30 | Dauud Cheaib v Carlo Rossi | L | 3-1 |
| Challenger Series TT | 2023/06/20 13:30 | Dennis Klein v Carlo Rossi | L | 3-1 |
| Challenger Series TT | 2023/06/20 12:05 | Carlo Rossi v Sven Happek | W | 3-1 |
| Challenger Series TT | 2023/06/20 10:30 | Sven Happek v Carlo Rossi | L | 3-1 |
| Challenger Series TT | 2023/06/20 06:30 | Dennis Klein v Carlo Rossi | W | 0-3 |