Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/19 19:50 | Marco Stefanidis v Akito Itagaki | L | 1-3 |
| Challenger Series TT | 2023/06/19 17:10 | Marco Stefanidis v Johannes Willeke | W | 3-0 |
| Challenger Series TT | 2023/06/19 14:30 | Sven Happek v Marco Stefanidis | L | 3-1 |
| Challenger Series TT | 2023/06/19 11:50 | Dennis Klein v Marco Stefanidis | L | 3-0 |
| Challenger Series TT | 2023/06/19 09:50 | Marco Stefanidis v Jose Guillot | L | 1-3 |
| Challenger Series TT | 2023/06/19 07:50 | Marco Stefanidis v Carlo Rossi | L | 1-3 |
| Challenger Series TT | 2023/06/09 08:30 | Kirill Fadeev v Marco Stefanidis | L | 3-0 |
| Challenger Series TT | 2023/06/09 07:10 | Antonin Gavlas v Marco Stefanidis | L | 3-0 |
| Challenger Series TT | 2023/06/20 07:10 | Aljaz Godec v Johannes Willeke | W | 3-0 |
| Challenger Series TT | 2023/06/19 19:10 | Sven Happek v Aljaz Godec | L | 3-2 |
| Challenger Series TT | 2023/06/19 16:30 | Dennis Klein v Aljaz Godec | L | 3-0 |
| Challenger Series TT | 2023/06/19 13:50 | Aljaz Godec v Jose Guillot | L | 1-3 |
| Challenger Series TT | 2023/06/19 10:30 | Aljaz Godec v Carlo Rossi | L | 1-3 |
| Challenger Series TT | 2023/06/19 08:30 | Aljaz Godec v Akito Itagaki | L | 1-3 |
| Challenger Series TT | 2023/05/23 07:50 | Michael Engelhardt v Aljaz Godec | W | 2-3 |
| Challenger Series TT | 2023/05/22 19:50 | Sven Happek v Aljaz Godec | W | 0-3 |