Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/07/13 11:50 | Michael Engelhardt v Dauud Cheaib | L | 2-3 |
| Challenger Series TT | 2023/07/13 09:10 | Michael Engelhardt v Benjamin Fruchart | L | 1-3 |
| Challenger Series TT | 2023/07/13 06:30 | Michael Engelhardt v Kirill Fadeev | L | 1-3 |
| Challenger Series TT | 2023/05/23 12:50 | Michael Engelhardt v Louis Price | W | 3-1 |
| Challenger Series TT | 2023/05/23 11:25 | Albert Vilardell v Michael Engelhardt | L | 3-0 |
| Challenger Series TT | 2023/05/23 10:30 | Michael Engelhardt v Louis Price | L | 2-3 |
| Challenger Series TT | 2023/05/23 07:50 | Michael Engelhardt v Aljaz Godec | L | 2-3 |
| Challenger Series TT | 2023/05/22 19:10 | Michael Engelhardt v Albert Vilardell | L | 1-3 |
| Challenger Series TT | 2023/07/13 13:50 | Tobias Slanina v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/07/13 10:30 | Tobias Slanina v Johannes Willeke | W | 3-1 |
| Challenger Series TT | 2023/07/13 08:30 | Tobias Slanina v Makoto Nogami | W | 3-1 |
| Challenger Series TT | 2023/07/04 10:30 | Tobias Slanina v David Reitspies | L | 0-3 |
| Challenger Series TT | 2023/07/04 07:50 | Tobias Slanina v Benjamin Fruchart | L | 1-3 |
| Challenger Series TT | 2023/07/03 19:10 | Tobias Slanina v Mathias Golab | W | 3-2 |
| Challenger Series TT | 2023/07/03 14:30 | Tobias Slanina v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2023/07/03 12:30 | Tobias Slanina v Daniel Rinderer | L | 1-3 |