| Challenger Series TT | 2023/04/17 14:30 | Damian Zech v Sven Happek | W | 0-3 |
| Challenger Series TT | 2023/01/12 10:10 | Damian Zech v Sven Happek | W | 1-3 |
| Challenger Series TT | 2022/12/05 15:30 | Damian Zech v Sven Happek | L | 3-2 |
| Challenger Series TT | 2022/12/01 08:50 | Sven Happek v Damian Zech | W | 3-0 |
| Challenger Series TT | 2022/09/19 19:50 | Damian Zech v Sven Happek | W | 0-3 |
| Challenger Ochsenhausen | 2022/06/27 13:50 | Sven Happek v Damian Zech | W | 3-1 |
| Challenger Ochsenhausen | 2022/06/20 17:10 | Damian Zech v Sven Happek | W | 2-3 |
| Challenger Ochsenhausen | 2022/01/20 18:10 | Sven Happek v Damian Zech | L | 2-3 |
| Challenger Series TT | 2023/04/20 09:10 | Tobias Slanina v Sven Happek | W | 1-3 |
| Challenger Series TT | 2023/04/20 07:10 | Sven Happek v Dillon Chambers | W | 3-0 |
| Challenger Series TT | 2023/04/18 09:10 | Sven Happek v Simon Berglund | L | 1-3 |
| Challenger Series TT | 2023/04/17 19:50 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2023/04/17 17:10 | Sven Happek v Makoto Nogami | L | 1-3 |
| Challenger Series TT | 2023/04/17 14:30 | Damian Zech v Sven Happek | W | 0-3 |
| Challenger Series TT | 2023/04/17 11:50 | Michael Engelhardt v Sven Happek | W | 0-3 |
| Challenger Series TT | 2023/04/17 09:50 | Sven Happek v Dillon Chambers | L | 1-3 |
| Challenger Series TT | 2023/04/20 10:30 | Martin Andersen v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/04/20 06:30 | Tobias Slanina v Damian Zech | L | 3-1 |
| Challenger Series TT | 2023/04/18 10:30 | Damian Zech v Siddharta Almeida | L | 1-3 |
| Challenger Series TT | 2023/04/18 07:50 | Damian Zech v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2023/04/17 19:10 | Damian Zech v Simon Berglund | L | 0-3 |
| Challenger Series TT | 2023/04/17 14:30 | Damian Zech v Sven Happek | L | 0-3 |
| Challenger Series TT | 2023/04/17 12:30 | Damian Zech v Makoto Nogami | W | 3-2 |
| Challenger Series TT | 2023/04/17 09:10 | Michael Engelhardt v Damian Zech | L | 3-0 |