Stadium: Center Round: 26 Ground: Clay
| 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 |
| Challenger Heilbronn | 2024/06/02 09:30 | Mathias Bourgue v Lasse Poertner | 6-3,3-6,2-6 |
| ITF M15 Kursumlijska Banja | 2024/05/30 10:20 | Gorazd Srbljak v Lasse Poertner | 7-5,6-3 |
| ITF M15 Kursumlijska Banja | 2024/05/28 10:55 | Lasse Poertner v Maxim Zhukov | 2-6,6-4,7-5 |
| ITF M15 Kursumlijska Banja | 2024/05/22 10:15 | Seydina Andre v Lasse Poertner | 6-4,4-6,6-3 |
| ITF M15 Kamen | 2024/06/25 08:30 | Karlo Cubelic v Liam Gavrielides | 6-7,2-6 |
| ITF M15 Saarlouis | 2024/06/21 10:00 | Liam Gavrielides v Lucas Gerch | 6-7,3-6 |
| ITF M15 Saarlouis | 2024/06/20 09:30 | Liam Gavrielides v Mika Petkovic | 5-7,6-3,6-4 |
| ITF M15 Saarlouis | 2024/06/19 12:30 | Liam Gavrielides v Zura Tkemaladze | 7-6,7-5 |
| ATP Stuttgart | 2024/06/08 10:30 | Maxime Cressy v Liam Gavrielides | 6-3,6-2 |
| Challenger Heilbronn | 2024/06/03 13:00 | Daniel Dutra Da Silva v Liam Gavrielides | 6-2,6-2 |
| Challenger Heilbronn | 2024/06/03 08:30 | Liam Gavrielides v Tim Handel | 2-6,6-4,6-4 |
| Challenger Augsburg | 2024/05/21 14:25 | Liam Gavrielides v Michael Vrbensky | 1-6,1-6 |