Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2025/06/13 11:00 | Dennis Klein v Daniel Rinderer | L | 3-0 |
| Challenger Series TT | 2025/06/12 17:00 | Dennis Klein v Daniel Rinderer | L | 3-0 |
| Challenger Series TT | 2025/05/30 11:00 | Dennis Klein v Daniel Rinderer | W | 0-3 |
| Challenger Series TT | 2025/05/29 11:00 | Dennis Klein v Daniel Rinderer | L | 3-0 |
| Challenger Series TT | 2025/03/21 10:15 | Dennis Klein v Daniel Rinderer | L | 3-2 |
| Challenger Series TT | 2025/03/20 09:00 | Dennis Klein v Daniel Rinderer | W | 2-3 |
| Challenger Series TT | 2024/05/06 14:40 | Dennis Klein v Daniel Rinderer | L | 3-0 |
| Challenger Series TT | 2023/12/18 07:30 | Daniel Rinderer v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2025/06/13 11:00 | Dennis Klein v Daniel Rinderer | L | 3-0 |
| Challenger Series TT | 2025/06/13 09:45 | Daniel Rinderer v Marius Henninger | W | 3-0 |
| Challenger Series TT | 2025/06/13 08:30 | Enio Mendes v Daniel Rinderer | W | 0-3 |
| Challenger Series TT | 2025/06/12 17:00 | Dennis Klein v Daniel Rinderer | L | 3-0 |
| Challenger Series TT | 2025/06/12 15:30 | Daniel Rinderer v Johannes Willeke | W | 3-0 |
| Challenger Series TT | 2025/06/12 13:00 | Daniel Rinderer v Oliver Both | W | 3-0 |
| Challenger Series TT | 2025/06/12 11:30 | William Koehl v Daniel Rinderer | W | 1-3 |
| Challenger Series TT | 2025/06/12 09:30 | Damian Zech v Daniel Rinderer | W | 0-3 |
| Challenger Series TT | 2025/07/14 14:00 | Aliafsar Yunusov v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2025/07/14 12:30 | Luis Kraus v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2025/07/14 11:30 | Francesco Maragioglio v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2025/07/14 09:00 | Marius Henninger v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2025/07/14 07:00 | Christian Tomsic v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2025/07/11 11:00 | Matthias Danzer v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2025/07/11 09:45 | Dennis Klein v Marius Henninger | W | 3-0 |
| Challenger Series TT | 2025/07/11 08:30 | Dennis Klein v Juri Grauer | W | 3-1 |