Stadium: Court 4 Round: 28 Ground: Carpet indoor
| Challenger Biel | 2023/03/22 10:00 | Max Hans Rehberg v Daniel Masur | 6-3,6-7,6-3 |
| DTB German Pro Series | 2020/06/23 13:50 | Daniel Masur v Max Hans Rehberg | 6-2,7-6 |
| Challenger Hamburg | 2023/10/17 11:25 | Stefano Napolitano v Daniel Masur | 1-6,6-2,6-4 |
| Challenger Hamburg | 2023/10/16 11:55 | Daniel Masur v Mats Rosenkranz | 4-6,6-3,7-6 |
| Challenger Hamburg | 2023/10/15 13:10 | Andrew Paulson v Daniel Masur | 3-6,2-6 |
| Challenger Tulln | 2023/09/05 11:10 | Sumit Nagal v Daniel Masur | 6-1,6-2 |
| Challenger Tulln | 2023/09/04 10:50 | Daniel Masur v David Pichler | 6-2,6-7,6-4 |
| Challenger Tulln | 2023/09/03 10:55 | Daniel Masur v Syl Gaxherri | 6-2,6-1 |
| Challenger Augsburg | 2023/08/22 11:40 | Daniel Masur v Benjamin Hassan | 2-6,6-7 |
| Challenger Augsburg | 2023/08/21 10:35 | Daniel Masur v Mats Moraing | 6-1,6-2 |
| Challenger Hamburg | 2023/10/16 09:00 | Mukund Sasikumar v Max Hans Rehberg | 6-7,6-1,7-5 |
| Challenger Hamburg | 2023/10/15 12:20 | Sarp Agabigun v Max Hans Rehberg | 1-6,3-6 |
| ITF M15 Forbach | 2023/09/26 16:00 | Max Hans Rehberg v Volodymyr Iakubenko | 3-6,6-3,1-6 |
| ITF M15 Uberlingen | 2023/08/20 12:00 | Max Hans Rehberg v Jakob Schnaitter | 7-6,1-6,2-6 |
| ITF M15 Uberlingen | 2023/08/19 12:00 | Max Hans Rehberg v David Fix | 6-2,6-3 |
| ITF M15 Uberlingen | 2023/08/18 10:00 | Max Hans Rehberg v Aleksandre Metreveli | 6-1,6-0 |
| ITF M15 Uberlingen | 2023/08/17 15:00 | Max Hans Rehberg v Marvin Schaber | 6-0,6-7,6-1 |
| Challenger Meerbusch | 2023/08/11 15:30 | Max Hans Rehberg v Titouan Droguet | 6-7,4-6 |