Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/03/13 10:10 | Michael Engelhardt v Felix Kohler | L | 3-1 |
| Challenger Series TT | 2023/03/13 08:10 | Felix Kohler v Peter Hribar | L | 0-3 |
| Challenger Series TT | 2022/11/22 09:30 | Rafael Turrini v Felix Kohler | L | 3-0 |
| Challenger Series TT | 2022/11/21 19:30 | Felix Kleeberg v Felix Kohler | W | 1-3 |
| Challenger Series TT | 2022/11/21 16:50 | Florian Bluhm v Felix Kohler | L | 3-0 |
| Challenger Series TT | 2022/11/21 14:50 | Sven Happek v Felix Kohler | L | 3-2 |
| Challenger Series TT | 2022/11/21 10:50 | Salim Karam v Felix Kohler | W | 0-3 |
| Challenger Series TT | 2022/11/21 08:10 | Josip Huzjak v Felix Kohler | L | 3-0 |
| Challenger Series TT | 2023/03/13 12:10 | Anton Limonov v Makoto Nogami | L | 3-0 |
| Challenger Series TT | 2023/03/13 07:30 | Michael Engelhardt v Makoto Nogami | L | 3-0 |
| Challenger Series TT | 2023/02/10 10:50 | Makoto Nogami v Bohdan Sinkevych | W | 3-1 |
| Challenger Series TT | 2023/02/10 07:30 | Makoto Nogami v Alberto Mino | L | 0-3 |
| Challenger Series TT | 2023/02/09 18:50 | Makoto Nogami v Sourav Saha | L | 0-3 |
| Challenger Series TT | 2023/02/09 17:30 | Makoto Nogami v Bastien Dupont | L | 1-3 |
| Challenger Series TT | 2023/02/09 12:50 | Makoto Nogami v Andrei Putuntica | W | 3-2 |
| Challenger Series TT | 2023/02/09 10:10 | Makoto Nogami v Marco Stefanidis | W | 3-0 |