Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/08 15:10 | Jeromy Loffler v Marco Stefanidis | L | 3-1 |
| Challenger Series TT | 2023/06/20 09:10 | Marco Stefanidis v Aljaz Godec | W | 3-2 |
| 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 | 2023/06/30 09:50 | Jeromy Loffler v Kirill Fadeev | L | 0-3 |
| Challenger Series TT | 2023/06/30 06:30 | Jeromy Loffler v Bohdan Sinkevych | W | 3-1 |
| Challenger Series TT | 2023/06/29 17:50 | Jeromy Loffler v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/06/29 16:30 | Jeromy Loffler v Carlo Rossi | L | 0-3 |
| Challenger Series TT | 2023/06/29 11:50 | Jeromy Loffler v Anton Limonov | W | 3-2 |
| Challenger Series TT | 2023/06/29 09:10 | Jeromy Loffler v Liang Qiu | L | 1-3 |
| Challenger Series TT | 2023/06/29 06:30 | Jeromy Loffler v Felix Kohler | W | 3-0 |
| Challenger Series TT | 2023/06/09 12:50 | Jeromy Loffler v Kirill Fadeev | L | 1-3 |