| Challenger Series TT | 2023/01/24 09:30 | Sven Happek v Martin Andersen | W | 3-1 |
| Challenger Series TT | 2023/01/24 07:30 | Sven Happek v Enio Mendes | L | 0-3 |
| Challenger Series TT | 2023/01/23 17:30 | Sven Happek v Enzo Angles | L | 1-3 |
| Challenger Series TT | 2023/01/23 16:50 | Sven Happek v Tibor Spanik | L | 0-3 |
| Challenger Series TT | 2023/01/23 12:50 | Sven Happek v Yannick Vostes | L | 0-3 |
| Challenger Series TT | 2023/01/23 10:10 | Sven Happek v Kestutis Zeimys | L | 0-3 |
| Challenger Series TT | 2023/01/23 07:30 | Sven Happek v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2023/01/13 14:30 | Bohdan Sinkevych v Sven Happek | L | 3-0 |