Stadium: Ochsenhausen, Germany
| 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 Ochsenhausen | 2021/11/12 08:50 | Alexander Valuch v Sven Happek | W | 3-2 |
| Challenger Series TT | 2023/12/07 11:30 | Alexander Valuch v Alvaro Gainza | W | 3-1 |
| Challenger Series TT | 2023/12/07 09:30 | Alexander Valuch v Simon Berglund | D | 1-1 |
| Challenger Series TT | 2023/12/05 11:30 | Alexander Valuch v Corentin Mazaud | L | 0-3 |
| Challenger Series TT | 2023/12/05 08:50 | Alexander Valuch v Damian Zech | W | 3-0 |
| Challenger Series TT | 2023/12/04 20:10 | Alexander Valuch v Daniel Rinderer | L | 1-3 |
| Challenger Series TT | 2023/12/04 15:30 | Alexander Valuch v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2023/12/04 13:30 | Alexander Valuch v Rafael Turrini | L | 1-3 |
| Challenger Series TT | 2023/12/04 10:10 | Carlo Rossi v Alexander Valuch | L | 3-1 |
| Challenger Series TT | 2023/12/07 10:50 | Miguel Nunez v Sven Happek | L | 3-2 |
| Challenger Series TT | 2023/12/07 08:10 | Samuel Amann v Sven Happek | W | 0-3 |
| Challenger Series TT | 2023/11/14 09:30 | Liang Qiu v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/11/14 08:10 | Vidit Desai v Sven Happek | W | 0-3 |
| Challenger Series TT | 2023/11/13 18:10 | Akito Itagaki v Sven Happek | L | 3-2 |
| Challenger Series TT | 2023/11/13 16:10 | Martin Baechler v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/11/13 13:30 | Alexander Valuch v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/11/13 12:10 | Dauud Cheaib v Sven Happek | L | 3-1 |