Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2025/12/01 18:00 | Karl Walter v Pylyp Koloidenko | W | 3-2 |
| Challenger Series TT | 2025/11/06 11:00 | Karl Walter v Pylyp Koloidenko | L | 1-3 |
| Challenger Series TT | 2025/11/04 09:30 | Pylyp Koloidenko v Karl Walter | L | 3-1 |
| Challenger Series TT | 2025/08/11 16:30 | Pylyp Koloidenko v Karl Walter | W | 0-3 |
| Challenger Series TT | 2025/08/05 08:00 | Karl Walter v Pylyp Koloidenko | W | 3-0 |
| Challenger Series TT | 2025/06/10 06:30 | Karl Walter v Pylyp Koloidenko | L | 0-3 |
| Challenger Series TT | 2025/12/09 12:00 | Dauud Cheaib v Karl Walter | L | 3-2 |
| Challenger Series TT | 2025/12/09 10:45 | Marco Stefanidis v Karl Walter | W | 2-3 |
| Challenger Series TT | 2025/12/09 09:30 | Karl Walter v Sven Happek | W | 3-1 |
| Challenger Series TT | 2025/12/09 07:30 | Karl Walter v Francesco Maragioglio | L | 0-3 |
| Challenger Series TT | 2025/12/08 17:00 | Karl Walter v Patrik Juhasz | W | 3-2 |
| Challenger Series TT | 2025/12/08 13:30 | Karl Walter v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2025/12/08 12:00 | Karl Walter v Marco Stefanidis | L | 2-3 |
| Challenger Series TT | 2025/12/08 09:30 | Jakub Harencak v Karl Walter | W | 2-3 |
| Challenger Series TT | 2025/12/05 09:00 | Jaime Lama v Pylyp Koloidenko | W | 2-3 |
| Challenger Series TT | 2025/12/05 08:00 | Pylyp Koloidenko v Rafael Turrini | L | 0-3 |
| Challenger Series TT | 2025/12/04 16:30 | Marco Stefanidis v Pylyp Koloidenko | W | 0-3 |
| Challenger Series TT | 2025/12/04 14:30 | Olav Kosolosky v Pylyp Koloidenko | L | 3-0 |
| Challenger Series TT | 2025/12/04 13:00 | Guillaume Alcayde v Pylyp Koloidenko | L | 3-0 |
| Challenger Series TT | 2025/12/04 10:00 | Damian Zech v Pylyp Koloidenko | L | 3-2 |
| Challenger Series TT | 2025/12/04 08:00 | Jakub Harencak v Pylyp Koloidenko | L | 3-2 |
| Challenger Series TT | 2025/12/02 09:30 | Erik Huzsvar v Pylyp Koloidenko | L | 3-1 |