Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/05/08 06:30 | Tobias Slanina v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2023/06/22 06:30 | Tobias Slanina v Johannes Willeke | W | 3-2 |
| Challenger Series TT | 2023/06/09 09:10 | Tobias Slanina v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/06/08 19:50 | Tobias Slanina v Akito Itagaki | L | 0-3 |
| Challenger Series TT | 2023/06/08 17:10 | Tobias Slanina v Marco Stefanidis | W | 3-1 |
| Challenger Series TT | 2023/06/08 14:30 | Florian Bluhm v Tobias Slanina | L | 3-1 |
| Challenger Series TT | 2023/06/08 11:50 | Max Klink v Tobias Slanina | W | 1-3 |
| Challenger Series TT | 2023/06/08 09:50 | Tobias Slanina v Kirill Fadeev | L | 1-3 |
| Challenger Series TT | 2023/06/08 07:50 | Tobias Slanina v Jeromy Loffler | L | 1-3 |
| Challenger Series TT | 2023/06/22 07:10 | Dennis Klein v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/06/20 13:30 | Dennis Klein v Carlo Rossi | W | 3-1 |
| Challenger Series TT | 2023/06/20 11:25 | Dennis Klein v Jose Guillot | W | 3-0 |
| Challenger Series TT | 2023/06/20 09:50 | Dennis Klein v Jose Guillot | W | 3-0 |
| Challenger Series TT | 2023/06/20 06:30 | Dennis Klein v Carlo Rossi | L | 0-3 |
| Challenger Series TT | 2023/06/19 17:50 | Dennis Klein v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/06/19 16:30 | Dennis Klein v Aljaz Godec | W | 3-0 |
| Challenger Series TT | 2023/06/19 11:50 | Dennis Klein v Marco Stefanidis | W | 3-0 |