| Challenger Series TT | 2024/03/18 09:30 | Damian Zech v Sven Happek | L | 2-3 |
| Challenger Series TT | 2024/02/05 13:20 | Sven Happek v Damian Zech | L | 3-2 |
| Challenger Series TT | 2023/06/26 09:50 | Damian Zech v Sven Happek | L | 2-3 |
| Challenger Series TT | 2023/05/22 09:50 | Sven Happek v Damian Zech | W | 0-3 |
| Challenger Series TT | 2023/04/20 11:50 | Sven Happek v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/04/17 14:30 | Damian Zech v Sven Happek | L | 0-3 |
| Challenger Series TT | 2023/01/12 10:10 | Damian Zech v Sven Happek | L | 1-3 |
| Challenger Series TT | 2022/12/05 15:30 | Damian Zech v Sven Happek | W | 3-2 |
| Challenger Series TT | 2024/04/11 07:40 | Damian Zech v Adrien Coton | L | 1-3 |
| Challenger Series TT | 2024/03/19 08:50 | Ronit Bhanja v Damian Zech | L | 3-1 |
| Challenger Series TT | 2024/03/18 17:30 | Norbert Tauler v Damian Zech | L | 3-2 |
| Challenger Series TT | 2024/03/18 15:30 | Armin Alicic v Damian Zech | L | 3-1 |
| Challenger Series TT | 2024/03/18 13:30 | Damian Zech v Amirreza Abbasi | L | 0-3 |
| Challenger Series TT | 2024/03/18 11:30 | Damian Zech v Joon Shim | L | 2-3 |
| Challenger Series TT | 2024/03/18 09:30 | Damian Zech v Sven Happek | L | 2-3 |
| Challenger Series TT | 2024/02/06 09:30 | Dauud Cheaib v Damian Zech | L | 3-0 |
| Challenger Series TT | 2024/04/11 07:05 | Alexander Valuch v Sven Happek | L | 3-1 |
| Challenger Series TT | 2024/04/09 08:50 | Armin Alicic v Sven Happek | L | 3-1 |
| Challenger Series TT | 2024/04/09 07:05 | Sven Happek v Miguel Nunez | L | 2-3 |
| Challenger Series TT | 2024/04/08 17:35 | Siddharta Almeida v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/04/08 15:15 | Carlos Caballero v Sven Happek | L | 3-2 |
| Challenger Series TT | 2024/04/08 12:55 | Sven Happek v Joon Shim | W | 3-2 |
| Challenger Series TT | 2024/04/08 10:00 | Sven Happek v Eusebio Vos | L | 2-3 |
| Challenger Series TT | 2024/04/08 08:15 | Sven Happek v Mike Hollo | L | 2-3 |