| 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 | 2022/12/01 08:50 | Sven Happek v Damian Zech | L | 3-0 |
| Challenger Series TT | 2024/02/06 09:30 | Dauud Cheaib v Damian Zech | L | 3-0 |
| Challenger Series TT | 2024/02/06 08:10 | Marc Miro Llorente v Damian Zech | L | 3-1 |
| Challenger Series TT | 2024/02/05 18:10 | Makoto Nogami v Damian Zech | L | 3-0 |
| Challenger Series TT | 2024/02/05 16:10 | Aljaz Godec v Damian Zech | W | 1-3 |
| Challenger Series TT | 2024/02/05 13:20 | Sven Happek v Damian Zech | L | 3-2 |
| Challenger Series TT | 2024/02/05 12:00 | Rafael Turrini v Damian Zech | L | 3-0 |
| Challenger Series TT | 2024/02/05 07:30 | Kirill Fadeev v Damian Zech | L | 3-1 |
| Challenger Series TT | 2024/01/19 09:30 | Rafael Turrini v Damian Zech | L | 3-2 |
| Challenger Series TT | 2024/03/12 09:25 | Akos Kishegyi v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/03/11 20:50 | Irvin Bertrand v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/03/11 18:50 | Diego Lillo v Sven Happek | W | 2-3 |
| Challenger Series TT | 2024/03/11 16:50 | Sven Happek v Mohammed Javad Sohrabi | L | 1-3 |
| Challenger Series TT | 2024/03/11 14:10 | Sven Happek v Mike Hollo | L | 0-3 |
| Challenger Series TT | 2024/03/11 12:10 | Sven Happek v Miguel Nunez | L | 1-3 |
| Challenger Series TT | 2024/03/11 09:30 | Marco Stefanidis v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/03/05 08:10 | Alexander Valuch v Sven Happek | L | 3-0 |