| Challenger Series TT | 2023/01/09 18:50 | Yannick Vostes v Sven Happek | L | 3-0 |
| Challenger Series TT | 2022/11/29 10:10 | Sven Happek v Yannick Vostes | L | 0-3 |
| Challenger Series TT | 2022/11/17 10:50 | Sven Happek v Yannick Vostes | L | 2-3 |
| Challenger Series TT | 2022/09/26 18:30 | Yannick Vostes v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2019/11/22 09:30 | Yannick Vostes v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2019/07/15 19:20 | Yannick Vostes v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2019/05/17 09:10 | Sven Happek v Yannick Vostes | L | 0-3 |
| Challenger Ochsenhausen | 2018/11/23 12:25 | Yannick Vostes v Sven Happek | L | 3-1 |
| 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 |
| Challenger Series TT | 2023/01/13 13:05 | Sven Happek v Josip Huzjak | W | 3-0 |
| Challenger Series TT | 2023/01/13 11:30 | Sven Happek v Bohdan Sinkevych | L | 2-3 |
| Challenger Series TT | 2023/01/13 08:50 | Sven Happek v Aljaz Godec | L | 2-3 |
| Challenger Series TT | 2023/01/12 20:10 | Sven Happek v Dillon Chambers | W | 3-2 |
| Challenger Series TT | 2023/01/12 15:30 | Sven Happek v Josip Huzjak | L | 2-3 |
| Challenger Series TT | 2023/01/23 10:50 | Yannick Vostes v Martin Andersen | W | 3-0 |
| Challenger Series TT | 2023/01/23 08:50 | Yannick Vostes v Enio Mendes | W | 3-1 |
| Challenger Series TT | 2023/01/17 13:50 | Dauud Cheaib v Yannick Vostes | L | 3-1 |
| Challenger Series TT | 2023/01/17 12:25 | Andrei Putuntica v Yannick Vostes | W | 1-3 |
| Challenger Series TT | 2023/01/17 10:50 | Florian Bluhm v Yannick Vostes | W | 1-3 |
| Challenger Series TT | 2023/01/17 07:30 | Julian Mohr v Yannick Vostes | W | 0-3 |
| Challenger Series TT | 2023/01/16 16:10 | Yannick Vostes v Andrei Putuntica | W | 3-0 |
| Challenger Series TT | 2023/01/16 14:10 | Yannick Vostes v Kenan Hrnic | W | 3-2 |