| Challenger Ochsenhausen | 2021/03/15 12:50 | Carlos Muhlbach v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2019/06/24 14:00 | Carlos Muhlbach v Sven Happek | L | 3-2 |
| Challenger Series TT | 2022/09/26 08:30 | Sven Happek v Jeromy Loffler | W | 3-2 |
| Challenger Series TT | 2022/09/20 07:50 | Guilherme Teodoro v Sven Happek | L | 3-1 |
| Challenger Series TT | 2022/09/19 19:50 | Damian Zech v Sven Happek | W | 0-3 |
| Challenger Series TT | 2022/09/19 17:50 | Michael Trink v Sven Happek | W | 1-3 |
| Challenger Series TT | 2022/09/19 15:50 | Sven Happek v Marcel Neumaier | L | 1-3 |
| Challenger Series TT | 2022/09/19 13:10 | Sven Happek v Alberto Lillo | W | 3-1 |
| Challenger Series TT | 2022/09/19 11:10 | Sven Happek v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2022/09/19 08:30 | Tal Israeli v Sven Happek | L | 3-2 |
| Challenger Series TT | 2022/09/26 07:50 | John Oyebode v Carlos Muhlbach | W | 0-3 |
| Challenger Series TT | 2022/09/06 12:50 | Carlos Muhlbach v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2022/09/06 10:45 | Carlos Muhlbach v Anton Limonov | W | 3-0 |
| Challenger Series TT | 2022/09/06 07:50 | Kirill Fadeev v Carlos Muhlbach | W | 0-3 |
| Challenger Series TT | 2022/09/06 07:10 | Dauud Cheaib v Carlos Muhlbach | W | 1-3 |
| Challenger Series TT | 2022/09/05 15:50 | Felix Kohler v Carlos Muhlbach | W | 1-3 |
| Challenger Series TT | 2022/09/05 14:30 | Anton Limonov v Carlos Muhlbach | W | 0-3 |
| Challenger Series TT | 2022/09/05 12:30 | Dennis Klein v Carlos Muhlbach | W | 0-3 |