Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2024/01/15 10:10 | Hannes Hoermann v Sven Happek | L | 3-1 |
| Challenger Series TT | 2024/01/08 18:10 | Sven Happek v Hannes Hoermann | L | 1-3 |
| Challenger Series TT | 2023/10/05 12:30 | Sven Happek v Hannes Hoermann | W | 3-1 |
| Challenger Series TT | 2024/02/26 16:10 | Sven Happek v Haruki Harada | L | 1-3 |
| Challenger Series TT | 2024/02/26 14:10 | Dennis Klein v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/02/26 11:30 | Liang Qiu v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/02/26 08:50 | Samuel Amann v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/02/06 13:50 | Sven Happek v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2024/02/06 12:25 | Rafael Turrini v Sven Happek | L | 3-1 |
| Challenger Series TT | 2024/02/06 11:30 | Sven Happek v Aljaz Godec | W | 3-2 |
| Challenger Series TT | 2024/02/06 08:50 | Sven Happek v Rafael Turrini | L | 0-3 |
| Challenger Series TT | 2024/01/16 13:50 | Norbert Tauler v Hannes Hoermann | L | 3-1 |
| Challenger Series TT | 2024/01/16 13:05 | Hannes Hoermann v Takumi Kageyama | L | 2-3 |
| Challenger Series TT | 2024/01/16 10:50 | Hannes Hoermann v Francesco Maragioglio | W | 3-0 |
| Challenger Series TT | 2024/01/16 07:30 | Hannes Hoermann v Mathias Golab | W | 3-1 |
| Challenger Series TT | 2024/01/15 18:50 | Hannes Hoermann v Norbert Tauler | L | 1-3 |
| Challenger Series TT | 2024/01/15 17:30 | Hannes Hoermann v Takumi Kageyama | W | 3-2 |
| Challenger Series TT | 2024/01/15 12:50 | Hannes Hoermann v Jean Rassouw | W | 3-1 |
| Challenger Series TT | 2024/01/15 10:10 | Hannes Hoermann v Sven Happek | W | 3-1 |