| Challenger Ochsenhausen | 2019/07/10 07:50 | Marcel Neumaier v Sven Happek | W | 1-3 |
| Challenger Series TT | 2022/09/19 13:10 | Sven Happek v Alberto Lillo | W | 3-1 |
| Challenger Series TT | 2022/09/19 11:10 | Sven Happek v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2022/09/19 08:30 | Tal Israeli v Sven Happek | L | 3-2 |
| Challenger Series TT | 2022/09/13 09:10 | Stephane Ouaiche v Sven Happek | L | 3-0 |
| Challenger Series TT | 2022/09/13 07:10 | Sven Happek v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2022/09/12 19:10 | Tal Israeli v Sven Happek | L | 3-0 |
| Challenger Series TT | 2022/09/12 16:30 | Marius Henninger v Sven Happek | L | 3-1 |
| Challenger Series TT | 2022/09/12 13:50 | Sven Happek v Albert Vilardell | L | 1-3 |
| Challenger Series TT | 2022/09/19 13:50 | Tal Israeli v Marcel Neumaier | L | 3-0 |
| Challenger Series TT | 2022/09/19 09:50 | Damian Zech v Marcel Neumaier | W | 1-3 |
| Challenger Series TT | 2022/09/19 07:10 | Guilherme Teodoro v Marcel Neumaier | L | 3-0 |
| Challenger Series TT | 2022/08/26 12:50 | Makoto Nogami v Marcel Neumaier | W | 1-3 |
| Challenger Series TT | 2022/08/26 12:05 | Mohammadali Rouintanesfahani v Marcel Neumaier | L | 3-0 |
| Challenger Series TT | 2022/08/26 10:30 | Marcel Neumaier v Simon Berglund | L | 1-3 |
| Challenger Series TT | 2022/08/26 07:50 | Marcel Neumaier v Siddharta Almeida | W | 3-2 |
| Challenger Series TT | 2022/08/25 19:10 | Marcel Neumaier v Mohammadali Rouintanesfahani | L | 0-3 |