| 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 | 2022/07/26 07:10 | Sven Happek v Kirill Fadeev | L | 1-3 |
| Challenger Series TT | 2022/07/25 19:10 | Kenan Hrnic v Sven Happek | W | 0-3 |
| Challenger Series TT | 2022/07/25 16:30 | Florian Bluhm v Sven Happek | L | 3-0 |
| Challenger Series TT | 2022/07/25 13:50 | Sven Happek v Max Klink | W | 3-1 |
| Challenger Series TT | 2022/07/25 10:30 | Sven Happek v Mohammadali Rouintanesfahani | L | 1-3 |
| Challenger Series TT | 2022/07/25 08:30 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2022/07/19 09:10 | Sven Happek v Andrei Putuntica | L | 0-3 |
| Challenger Ochsenhausen | 2022/07/18 19:50 | Sven Happek v Yaroslav Zhmudenko | L | 0-3 |
| Challenger Series TT | 2022/08/02 12:50 | Michael Engelhardt v Carlos Muhlbach | W | 1-3 |
| Challenger Series TT | 2022/08/02 12:05 | Dennis Klein v Carlos Muhlbach | L | 3-0 |
| Challenger Series TT | 2022/08/02 10:30 | Carlos Muhlbach v Jean Rassouw | W | 3-0 |
| Challenger Series TT | 2022/08/02 07:50 | Carlos Muhlbach v Krisztian Katus | W | 3-0 |
| Challenger Series TT | 2022/08/01 19:10 | Carlos Muhlbach v Yannick Vostes | L | 2-3 |
| Challenger Series TT | 2022/08/01 14:30 | Carlos Muhlbach v Damian Zech | W | 3-0 |
| Challenger Series TT | 2022/08/01 12:30 | Carlos Muhlbach v Michael Engelhardt | W | 3-0 |
| Challenger Series TT | 2022/08/01 09:10 | Michael Fuchs v Carlos Muhlbach | W | 0-3 |