Stadium: Platz 1 Round: 26
| German Championship | 2023/12/06 12:05 | Luca Matteo Sobbe v Tom Gentzsch | 3-6,2-6 |
| Challenger - Maia | 2023/11/29 15:25 | Fabio Fognini v Tom Gentzsch | 6-7,6-3,7-5 |
| Challenger - Maia | 2023/11/27 11:00 | Miguel Damas v Tom Gentzsch | 6-2,3-6,1-6 |
| Challenger - Maia | 2023/11/26 11:00 | Federico Bertuccioli v Tom Gentzsch | 4-6,2-6 |
| ITF M15 - Monastir | 2023/11/15 08:30 | Tom Gentzsch v Nikola Basic | 6-4,1-6,3-6 |
| ITF M15 - Monastir | 2023/11/10 09:00 | Juan Bautista Otegui v Tom Gentzsch | 6-3,6-4 |
| ITF M15 - Monastir | 2023/11/09 08:30 | Nicolas Kobelt v Tom Gentzsch | 5-7,1-6 |
| ITF M15 - Monastir | 2023/11/08 10:25 | Nazim Makhlouf v Tom Gentzsch | 3-6,3-6 |
| 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 - Hamborg | 2023/10/16 09:00 | Mukund Sasikumar v Max Hans Rehberg | 6-7,6-1,7-5 |
| Challenger - Hamborg | 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 - Ueberlingen | 2023/08/20 12:00 | Max Hans Rehberg v Jakob Schnaitter | 7-6,1-6,2-6 |