Stadium: Court 4 Round: 25 Ground: Carpet indoor
| German Championship | 2023/12/09 14:20 | Daniel Masur v Max Hans Rehberg | 7-5,4-6,6-3 |
| German Championship | 2023/12/08 14:10 | Kai Lemstra v Max Hans Rehberg | 3-6,4-6 |
| German Championship | 2023/12/07 12:00 | Tom Gentzsch v Max Hans Rehberg | 2-6,7-5,3-6 |
| German Championship | 2023/12/06 12:00 | Alen Mujakic v Max Hans Rehberg | 2-6,4-6 |
| Challenger Ismaning | 2023/11/03 16:25 | Lukas Klein v Max Hans Rehberg | 6-3,6-2 |
| Challenger Ismaning | 2023/11/02 16:30 | Mats Rosenkranz v Max Hans Rehberg | 6-7,4-6 |
| Challenger Ismaning | 2023/10/31 18:35 | Max Hans Rehberg v Maxime Cressy | 6-7,6-4,7-6 |
| Challenger Hamburg | 2023/10/16 09:00 | Mukund Sasikumar v Max Hans Rehberg | 6-7,6-1,7-5 |
| ITF M15 Cadolzburg | 2024/01/15 10:00 | Karlo Cubelic v David Eichenseher | 6-3,6-1 |
| ITF M15 Cadolzburg | 2024/01/14 15:30 | Karlo Cubelic v Emil Rast | 6-1,6-2 |
| ITF M15 Sharm El Sheikh | 2023/11/26 10:30 | Matteo Meneghetti v Karlo Cubelic | 0-6,1-6 |
| ITF M15 Sharm El Sheikh | 2023/11/22 09:35 | Jiri Barnat v Karlo Cubelic | 6-0,4-6,6-3 |
| ITF M15 Sharm El Sheikh | 2023/11/21 08:00 | Karlo Cubelic v Daniil Savelev | 7-5,7-5 |
| ITF M15 Sharm El Sheikh | 2023/11/20 10:30 | Karlo Cubelic v Pavel Kravchenko | 6-1,6-2 |
| ITF M15 Sharm El Sheikh | 2023/11/13 08:00 | Karlo Cubelic v Nicolas Ifi | 6-0,4-6,8-10 |
| ITF M25 Sarreguemines | 2023/10/23 09:55 | Patrick Zahraj v Karlo Cubelic | 4-6,6-3,10-7 |