Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/12/07 13:30 | Alexander Valuch v Sven Happek | W | 3-0 |
| Challenger Series TT | 2023/11/13 13:30 | Alexander Valuch v Sven Happek | W | 3-1 |
| Challenger Series TT | 2023/10/09 09:50 | Sven Happek v Alexander Valuch | W | 0-3 |
| Challenger Series TT | 2023/10/05 07:10 | Sven Happek v Alexander Valuch | W | 0-3 |
| Challenger - Ochsenhausen | 2022/02/24 17:30 | Sven Happek v Alexander Valuch | W | 0-3 |
| Challenger - Ochsenhausen | 2022/01/28 13:05 | Alexander Valuch v Sven Happek | W | 3-0 |
| Challenger - Ochsenhausen | 2022/01/27 20:10 | Sven Happek v Alexander Valuch | W | 1-3 |
| Challenger - Ochsenhausen | 2021/12/03 11:30 | Sven Happek v Alexander Valuch | W | 2-3 |
| Challenger Series TT | 2024/02/27 08:50 | Alexander Valuch v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2024/02/26 20:10 | Alexander Valuch v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2024/02/26 15:30 | Alexander Valuch v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2024/02/26 13:30 | Alexander Valuch v Haruki Harada | W | 3-0 |
| Challenger Series TT | 2024/02/26 10:10 | Akito Itagaki v Alexander Valuch | W | 0-3 |
| Challenger Series TT | 2024/02/26 08:10 | Alexander Valuch v Mohammed Javad Sohrabi | L | 2-3 |
| Challenger Series TT | 2024/02/23 14:35 | Alexander Valuch v Benjamin Fruchart | L | 1-3 |
| Challenger Series TT | 2024/02/23 13:00 | Haruki Harada v Alexander Valuch | L | 3-2 |
| Challenger Series TT | 2024/02/27 07:30 | Akito Itagaki v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/02/26 19:30 | Sven Happek v Mohammed Javad Sohrabi | L | 0-3 |
| Challenger Series TT | 2024/02/26 16:10 | Sven Happek v Haruki Harada | L | 1-3 |
| Challenger Series TT | 2024/02/26 14:10 | Dennis Klein v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/02/26 11:30 | Liang Qiu v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/02/26 08:50 | Samuel Amann v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/02/06 13:50 | Sven Happek v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2024/02/06 12:25 | Rafael Turrini v Sven Happek | L | 3-1 |