Stadium: Court 9 Round: 25 Ground: Clay
| ITF M15 Uslar | 2024/07/17 15:30 | Lasse Poertner v Elmar Ejupovic | 4-6,6-4,1-6 |
| ITF M25 Kassel | 2024/07/10 10:00 | Raphael Collignon v Lasse Poertner | 6-2,6-1 |
| Challenger Karlsruhe | 2024/06/30 09:00 | Edas Butvilas v Lasse Poertner | 7-6,6-1 |
| ITF M15 Kamen | 2024/06/27 08:30 | Lasse Poertner v Liam Gavrielides | 6-4,1-6,6-7 |
| ITF M15 Kamen | 2024/06/25 11:05 | Vincent Marysko v Lasse Poertner | 2-6,1-6 |
| ITF M15 Casablanca | 2024/06/19 10:00 | Lasse Poertner v Alex M Pujolras | 4-6,7-5,3-6 |
| Challenger Heilbronn | 2024/06/04 11:50 | Geoffrey Blancaneaux v Lasse Poertner | 6-1,7-6 |
| Challenger Heilbronn | 2024/06/03 12:05 | Lasse Poertner v Louis Wessels | 3-6,6-3,6-4 |
| ITF M15 Uslar | 2024/07/18 11:35 | David Fix v Elmar Ejupovic | 4-6,5-7 |
| ITF M15 Uslar | 2024/07/16 13:50 | David Fix v Tobias Franco | 6-0,6-1 |
| ITF M25 Kassel | 2024/07/09 12:55 | David Fix v Daniel Michalski | 6-3,2-6,2-6 |
| Challenger Karlsruhe | 2024/07/01 16:20 | David Fix v Liam Gavrielides | 1-6,3-6 |
| Challenger Karlsruhe | 2024/07/01 12:10 | Daniel Dutra Da Silva v David Fix | 6-1,5-7,4-6 |
| ITF M15 Kamen | 2024/06/26 08:25 | Justin Engel v David Fix | 6-4,6-1 |
| ITF M15 Saarlouis | 2024/06/20 14:55 | David Fix v Luca Wiedenmann | 2-6,6-7 |
| ITF M15 Saarlouis | 2024/06/18 11:00 | David Fix v Marc Majdandzic | 6-2,1-6,7-5 |