Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/08/03 07:50 | Marco Stefanidis v Zengyi Wang | L | 1-3 |
| Challenger Series TT | 2023/07/21 09:50 | Marco Stefanidis v Amirreza Abbasi | L | 0-3 |
| Challenger Series TT | 2023/07/21 06:30 | Marco Stefanidis v Yannick Vostes | L | 0-3 |
| Challenger Series TT | 2023/07/20 17:50 | Marco Stefanidis v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/07/20 16:30 | Marco Stefanidis v Miroslav Horejsi | L | 1-3 |
| Challenger Series TT | 2023/07/20 11:50 | Marco Stefanidis v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2023/07/20 09:10 | Marco Stefanidis v Damian Zech | W | 3-2 |
| Challenger Series TT | 2023/07/20 06:30 | Marco Stefanidis v Jeromy Loffler | L | 0-3 |
| Challenger Series TT | 2023/08/03 07:10 | Daniel Rinderer v Hannes Hormann | L | 3-1 |
| Challenger Series TT | 2023/07/25 09:50 | Ihor Zavadskyi v Hannes Hormann | W | 1-3 |
| Challenger Series TT | 2023/07/25 09:50 | Igor Zavadskij v Hannes Hormann | W | 1-3 |
| Challenger Series TT | 2023/07/25 08:30 | Hannes Hormann v Bohdan Sinkevych | L | 2-3 |
| Challenger Series TT | 2023/07/24 18:30 | Guillaume Alcayde v Hannes Hormann | L | 3-1 |
| Challenger Series TT | 2023/07/24 15:50 | Armin Alicic v Hannes Hormann | L | 3-2 |
| Challenger Series TT | 2023/07/24 13:50 | Yannick Vostes v Hannes Hormann | L | 3-0 |
| Challenger Series TT | 2023/07/24 09:50 | Antonin Gavlas v Hannes Hormann | L | 3-0 |