Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/02/09 08:10 | Marco Stefanidis v Bohdan Sinkevych | L | 1-3 |
| Challenger Series TT | 2023/08/03 19:50 | Marco Stefanidis v Anton Limonov | L | 0-3 |
| Challenger Series TT | 2023/08/03 17:10 | Marco Stefanidis v Karl Zimmermann | L | 2-3 |
| Challenger Series TT | 2023/08/03 14:30 | Daniel Rinderer v Marco Stefanidis | L | 3-1 |
| Challenger Series TT | 2023/08/03 11:50 | Damian Zech v Marco Stefanidis | L | 3-1 |
| Challenger Series TT | 2023/08/03 09:50 | Marco Stefanidis v Hannes Hormann | L | 2-3 |
| 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 | 2023/08/04 07:10 | Bohdan Sinkevych v Karl Zimmermann | W | 3-1 |
| Challenger Series TT | 2023/08/03 19:10 | Daniel Rinderer v Bohdan Sinkevych | L | 3-0 |
| Challenger Series TT | 2023/08/03 16:30 | Damian Zech v Bohdan Sinkevych | W | 0-3 |
| Challenger Series TT | 2023/08/03 13:50 | Bohdan Sinkevych v Hannes Hormann | L | 2-3 |
| Challenger Series TT | 2023/08/03 10:30 | Bohdan Sinkevych v Zengyi Wang | L | 1-3 |
| Challenger Series TT | 2023/08/03 08:30 | Bohdan Sinkevych v Anton Limonov | L | 1-3 |
| Challenger Series TT | 2023/07/25 08:30 | Hannes Hormann v Bohdan Sinkevych | W | 2-3 |
| Challenger Series TT | 2023/07/25 07:10 | Yannick Vostes v Bohdan Sinkevych | L | 3-1 |