Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/03/02 19:30 | Guilherme Teodoro v Marco Stefanidis | L | 3-0 |
| Challenger Series TT | 2023/03/02 16:50 | Anton Limonov v Marco Stefanidis | L | 3-1 |
| Challenger Series TT | 2023/03/02 14:50 | Dillon Chambers v Marco Stefanidis | L | 3-0 |
| Challenger Series TT | 2023/03/02 10:50 | Albert Vilardell v Marco Stefanidis | L | 3-1 |
| Challenger Series TT | 2023/03/02 08:10 | Samuel Amann v Marco Stefanidis | W | 1-3 |
| Challenger Series TT | 2023/02/10 11:30 | Marco Stefanidis v Alberto Mino | L | 0-3 |
| Challenger Series TT | 2023/02/10 08:50 | Marco Stefanidis v Sourav Saha | L | 0-3 |
| Challenger Series TT | 2023/02/09 20:10 | Marco Stefanidis v Bastien Dupont | L | 1-3 |
| Challenger Series TT | 2023/03/03 08:10 | Dillon Chambers v Damian Zech | L | 3-1 |
| Challenger Series TT | 2023/03/02 18:10 | Albert Vilardell v Damian Zech | L | 3-2 |
| Challenger Series TT | 2023/03/02 16:10 | Guilherme Teodoro v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/03/02 13:30 | Samuel Amann v Damian Zech | W | 0-3 |
| Challenger Series TT | 2023/03/02 12:10 | Anton Limonov v Damian Zech | L | 3-1 |
| Challenger Series TT | 2023/03/02 07:30 | Liang Qiu v Damian Zech | L | 3-2 |
| Challenger Series TT | 2023/02/03 10:10 | Damian Zech v Hannes Hormann | L | 1-3 |
| Challenger Series TT | 2023/02/02 20:50 | Damian Zech v Nikola Grujic | L | 1-3 |