Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/05/08 11:50 | Tobias Slanina v Sven Happek | W | 3-1 |
| Challenger Series TT | 2023/04/24 11:50 | Tobias Slanina v Sven Happek | W | 3-2 |
| Challenger Series TT | 2023/04/20 09:10 | Tobias Slanina v Sven Happek | L | 1-3 |
| Challenger Series TT | 2022/10/24 11:50 | Sven Happek v Tobias Slanina | L | 3-1 |