Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2024/04/12 09:25 | Marco Stefanidis v Sven Happek | L | 1-3 |
| Challenger Series TT | 2024/03/11 09:30 | Marco Stefanidis v Sven Happek | W | 3-0 |
| Challenger Series TT | 2023/06/19 14:30 | Sven Happek v Marco Stefanidis | L | 3-1 |
| Challenger Series TT | 2024/06/18 14:30 | Marco Stefanidis v Miad Lotfijanabadi | W | 3-1 |
| Challenger Series TT | 2024/06/18 13:00 | Marco Stefanidis v Markus Bott | W | 3-2 |
| Challenger Series TT | 2024/06/18 11:30 | Marco Stefanidis v Alexander Krebs | W | 3-0 |
| Challenger Series TT | 2024/06/18 09:30 | Marco Stefanidis v Timur Voitekhov | W | 3-0 |
| Challenger Series TT | 2024/06/18 08:30 | Michael Fuchs v Marco Stefanidis | W | 0-3 |
| Challenger Series TT | 2024/06/18 07:00 | Marco Stefanidis v Adrien Coton | W | 3-0 |
| Challenger Series TT | 2024/06/17 15:30 | Marco Stefanidis v Siddharta Almeida | W | 3-0 |
| Challenger Series TT | 2024/06/17 13:30 | Marco Stefanidis v Alexander Krebs | W | 3-2 |
| Challenger Series TT | 2024/06/06 15:00 | Sven Happek v Szilard Kanabe | W | 3-0 |
| Challenger Series TT | 2024/06/06 13:30 | Sven Happek v Jon Ander Guerricabeitia | W | 3-0 |
| Challenger Series TT | 2024/06/06 12:00 | Sven Happek v Siddharta Almeida | W | 3-2 |
| Challenger Series TT | 2024/06/06 10:30 | Sven Happek v Damian Zech | W | 3-1 |
| Challenger Series TT | 2024/06/06 07:30 | Oleksii Dehtiarov v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/06/06 07:00 | Tom Duffke v Sven Happek | W | 0-3 |
| Challenger Series TT | 2024/05/14 19:30 | Mykhailo Mosiuk v Sven Happek | W | 0-3 |
| Challenger Series TT | 2024/05/14 19:00 | Sven Happek v Damian Zech | L | 2-3 |