Stadium: Ochsenhausen, Germany
| Challenger Ochsenhausen | 2022/02/24 17:30 | Sven Happek v Alexander Valuch | L | 0-3 |
| Challenger Ochsenhausen | 2022/01/28 13:05 | Alexander Valuch v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2022/01/27 20:10 | Sven Happek v Alexander Valuch | L | 1-3 |
| Challenger Ochsenhausen | 2021/12/03 11:30 | Sven Happek v Alexander Valuch | L | 2-3 |
| Challenger Ochsenhausen | 2021/11/12 08:50 | Alexander Valuch v Sven Happek | L | 3-2 |
| Challenger Ochsenhausen | 2021/10/28 08:30 | Sven Happek v Alexander Valuch | L | 2-3 |
| Challenger Ochsenhausen | 2021/10/15 07:50 | Alexander Valuch v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2021/07/16 07:10 | Sven Happek v Alexander Valuch | L | 1-3 |
| Challenger Series TT | 2023/09/19 09:50 | Sven Happek v Alvaro Gainza | L | 1-3 |
| Challenger Series TT | 2023/09/19 06:30 | Sven Happek v Jong-Eon Yeon | L | 2-3 |
| Challenger Series TT | 2023/09/18 17:50 | Sven Happek v Sudhanshu Grover | L | 1-3 |
| Challenger Series TT | 2023/09/18 16:30 | Sven Happek v Louis Reuseau | W | 3-2 |
| Challenger Series TT | 2023/09/18 11:50 | Sven Happek v Louis Price | L | 0-3 |
| Challenger Series TT | 2023/09/18 09:10 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2023/09/18 06:30 | Sven Happek v Liang Qiu | L | 2-3 |
| Challenger Series TT | 2023/06/27 09:50 | Marius Henninger v Sven Happek | L | 3-2 |
| Challenger Series TT | 2023/09/26 12:50 | Alexander Valuch v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2023/09/26 11:25 | Guilherme Teodoro v Alexander Valuch | L | 3-1 |
| Challenger Series TT | 2023/09/26 09:10 | Alexander Valuch v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2023/09/25 19:50 | Alexander Valuch v Armin Alicic | L | 2-3 |
| Challenger Series TT | 2023/09/25 17:10 | Alexander Valuch v Marius Henninger | W | 3-1 |
| Challenger Series TT | 2023/09/25 14:30 | Jeromy Loffler v Alexander Valuch | L | 3-1 |
| Challenger Series TT | 2023/09/25 11:50 | Makoto Nogami v Alexander Valuch | W | 2-3 |
| Challenger Series TT | 2023/09/25 09:50 | Alexander Valuch v Hannes Hormann | W | 3-0 |