Estadio: Ochsenhausen, Germany
| Challenger Series TT | 2023/12/11 10:10 | Dennis Klein v Alexander Valuch | L | 3-0 |
| Challenger Series TT | 2023/11/13 10:10 | Dennis Klein v Alexander Valuch | L | 3-0 |
| Challenger de Ochsenhausen | 2021/12/01 10:50 | Dennis Klein v Alexander Valuch | L | 3-1 |
| Challenger de Ochsenhausen | 2021/10/11 09:10 | Alexander Valuch v Dennis Klein | W | 3-1 |
| Challenger de Ochsenhausen | 2021/07/15 07:50 | Alexander Valuch v Dennis Klein | L | 2-3 |
| Challenger de Ochsenhausen | 2021/06/29 08:20 | Alexander Valuch v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2024/02/26 20:10 | Alexander Valuch v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2024/02/26 15:30 | Alexander Valuch v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2024/02/26 13:30 | Alexander Valuch v Haruki Harada | W | 3-0 |
| Challenger Series TT | 2024/02/26 10:10 | Akito Itagaki v Alexander Valuch | W | 0-3 |
| Challenger Series TT | 2024/02/26 08:10 | Alexander Valuch v Mohammed Javad Sohrabi | L | 2-3 |
| Challenger Series TT | 2024/02/23 14:35 | Alexander Valuch v Benjamin Fruchart | L | 1-3 |
| Challenger Series TT | 2024/02/23 13:00 | Haruki Harada v Alexander Valuch | L | 3-2 |
| Challenger Series TT | 2024/02/23 11:30 | Alexander Valuch v Haruki Harada | L | 2-3 |
| Challenger Series TT | 2024/02/26 20:50 | Samuel Amann v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2024/02/26 18:50 | Akito Itagaki v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2024/02/26 16:50 | Dennis Klein v Mohammed Javad Sohrabi | W | 3-0 |
| Challenger Series TT | 2024/02/26 14:10 | Dennis Klein v Sven Happek | W | 3-0 |
| Challenger Series TT | 2024/02/26 12:10 | Dennis Klein v Haruki Harada | L | 2-3 |
| Challenger Series TT | 2024/02/26 09:30 | Liang Qiu v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2024/01/30 14:30 | Alberto Lillo v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2024/01/30 13:05 | Dennis Klein v Marius Henninger | W | 3-0 |