| Challenger Series TT | 2023/04/24 17:10 | Sven Happek v Max Klink | W | 3-0 |
| Challenger Series TT | 2022/07/25 13:50 | Sven Happek v Max Klink | W | 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 |
| Challenger Series TT | 2023/06/09 09:50 | Max Klink v Kirill Fadeev | L | 0-3 |
| Challenger Series TT | 2023/06/09 06:30 | Max Klink v Jeromy Loffler | L | 1-3 |
| Challenger Series TT | 2023/06/08 17:50 | Max Klink v Akito Itagaki | L | 0-3 |
| Challenger Series TT | 2023/06/08 16:30 | Max Klink v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/06/08 11:50 | Max Klink v Tobias Slanina | L | 1-3 |
| Challenger Series TT | 2023/06/08 09:10 | Max Klink v Florian Bluhm | L | 0-3 |
| Challenger Series TT | 2023/06/08 06:30 | Max Klink v Marco Stefanidis | L | 1-3 |
| Challenger Series TT | 2023/04/25 07:50 | Anton Limonov v Max Klink | L | 3-0 |