| Challenger Series TT | 2025/02/25 09:30 | Sven Happek v Chia-Hao Chang | W | 3-0 |
| Challenger Series TT | 2025/02/25 07:30 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2025/02/24 17:30 | Sven Happek v Marco Stefanidis | L | 0-3 |
| Challenger Series TT | 2025/02/24 14:00 | Sven Happek v Florian Bluhm | L | 2-3 |
| Challenger Series TT | 2025/02/24 12:30 | Sven Happek v Kaito Yamashita | W | 3-2 |
| Challenger Series TT | 2025/02/24 10:00 | Milad Abedianin v Sven Happek | L | 3-2 |
| Challenger Series TT | 2025/02/24 08:30 | Sven Happek v Vincent Senkbeil | L | 2-3 |
| Challenger Series TT | 2025/01/28 10:00 | Armin Alicic v Sven Happek | L | 3-1 |