| Challenger Series TT | 07/01 08:40 | - | Karl Walter v Aliafsar Yunusov | W | 3-0 | |
| Challenger Series TT | 07/01 06:30 | - | Karl Walter v Francesco Maragioglio | L | 0-3 | |
| Challenger Series TT | 06/30 16:00 | - | Karl Walter v Nikola Horvat | W | 3-0 | |
| Challenger Series TT | 06/30 12:30 | - | Karl Walter v Samuel Amann | L | 0-3 | |
| Challenger Series TT | 06/30 11:00 | - | Karl Walter v Adrien Coton | L | 0-3 | |
| Challenger Series TT | 06/30 08:30 | - | Carlos Roman Pozo v Karl Walter | W | 1-3 | |
| Challenger Series TT | 06/30 07:00 | - | Karl Walter v Dennis Klein | L | 0-3 | |
| Challenger Series TT | 06/24 10:30 | 50 | Karl Walter v Marco Stefanidis | L | 1-3 | |
| Challenger Series TT | 06/24 09:15 | 2 | Kirill Fadeev v Karl Walter | L | 3-1 | |
| Challenger Series TT | 06/24 08:30 | - | Karl Walter v Viktor Yefimov | L | 1-3 | |
| Challenger Series TT | 06/24 06:30 | - | Karl Walter v Aliafsar Yunusov | W | 3-1 | |
| Challenger Series TT | 06/23 16:00 | - | Karl Walter v Samuel Amann | L | 1-3 |