| 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 | 2023/12/07 16:50 | Alvaro Gainza v Sven Happek | W | 2-3 |
| Challenger Series TT | 2023/12/07 13:30 | Alexander Valuch v Sven Happek | L | 3-0 |
| 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 | 2023/12/08 08:10 | Alexander Valuch v Max Klink | L | 3-0 |
| Challenger Series TT | 2023/12/07 16:10 | Miguel Nunez v Max Klink | L | 3-1 |
| Challenger Series TT | 2023/12/07 14:50 | Alvaro Gainza v Max Klink | L | 3-0 |
| Challenger Series TT | 2023/12/07 12:50 | Samuel Amann v Max Klink | W | 2-3 |
| Challenger Series TT | 2023/12/07 07:30 | Mike Hollo v Max Klink | L | 3-1 |
| 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 |