Stadium: Ochsenhausen, Germany
| Challenger Ochsenhausen | 2022/05/12 06:30 | Sudhanshu Grover v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/27 09:50 | Marius Henninger v Sven Happek | L | 3-2 |
| Challenger Series TT | 2023/06/27 08:30 | Sven Happek v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2023/06/26 18:30 | Benjamin Fruchart v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/06/26 15:50 | Antonin Gavlas v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/26 13:50 | Carlo Rossi v Sven Happek | L | 3-2 |
| Challenger Series TT | 2023/06/26 09:50 | Damian Zech v Sven Happek | W | 2-3 |
| Challenger Series TT | 2023/06/26 07:10 | Makoto Nogami v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/23 09:10 | Sven Happek v Carlo Rossi | L | 2-3 |
| WTT Star Contender Goa Quals | 2023/02/27 12:40 | Sudhanshu Grover v Vincent Picard | L | 0-3 |
| Challenger Series TT | 2022/06/17 09:10 | Sudhanshu Grover v Amirreza Abbasi | L | 0-3 |
| Challenger Series TT | 2022/06/16 19:50 | Sudhanshu Grover v Elia Schmid | W | 3-0 |
| Challenger Series TT | 2022/06/16 17:10 | Sudhanshu Grover v Dennis Klein | W | 3-2 |
| Challenger Series TT | 2022/06/16 14:30 | Kirill Fadeev v Sudhanshu Grover | L | 3-1 |
| Challenger Series TT | 2022/06/16 11:50 | Michael Engelhardt v Sudhanshu Grover | W | 1-3 |
| Challenger Series TT | 2022/06/16 09:50 | Sudhanshu Grover v Mohammadali Rouintanesfahani | W | 3-2 |
| Challenger Series TT | 2022/06/16 07:50 | Sudhanshu Grover v Simon Berglund | L | 0-3 |