Stadium: Court 3 Round: 26 Ground: Clay
| ITF M25 Koksijde | 2023/08/18 11:25 | Jahn, Jeremy v Marlon Vankan | 6-4,6-1 |
| ITF M25 Montauban | 2023/06/22 09:25 | Marlon Vankan v Jahn, Jeremy | 1-6,2-6 |
| ITF M25 Oldenzaal | 2023/08/29 12:20 | Alec Deckers v Jahn, Jeremy | 6-3,4-6,6-7 |
| ITF M25 Poznan | 2023/08/25 11:00 | Jahn, Jeremy v Viacheslav Bielinskyi | 6-0,4-6,2-6 |
| ITF M25 Poznan | 2023/08/24 11:05 | Jahn, Jeremy v Jasza Szajrych | 6-2,7-6 |
| ITF M25 Poznan | 2023/08/23 14:05 | Jahn, Jeremy v Dominik Kellovsky | 7-5,6-4 |
| ITF M25 Koksijde | 2023/08/19 14:00 | Timo Legout v Jahn, Jeremy | 3-6,7-5,6-4 |
| ITF M25 Koksijde | 2023/08/18 11:25 | Jahn, Jeremy v Marlon Vankan | 6-4,6-1 |
| ITF M25 Koksijde | 2023/08/17 10:10 | Jahn, Jeremy v Alexis Boureau | 6-1,6-1 |
| ITF M25 Koksijde | 2023/08/15 16:00 | Jahn, Jeremy v Nicolas Bruna | 6-2,6-2 |
| ITF M25 Oldenzaal | 2023/08/29 14:40 | Marlon Vankan v Brian Bozemoj | 4-6,6-3,6-4 |
| ITF M15 Trier | 2023/08/23 10:55 | Marlon Vankan v Stepan Baum | 2-6,0-6 |
| ITF M25 Koksijde | 2023/08/18 11:25 | Jahn, Jeremy v Marlon Vankan | 6-4,6-1 |
| ITF M25 Koksijde | 2023/08/17 11:25 | Gilles Arnaud Bailly v Marlon Vankan | 4-6,5-7 |
| ITF M25 Koksijde | 2023/08/15 16:55 | Marlon Vankan v Tibo Colson | 6-4,6-4 |
| ITF M15 Eupen | 2023/08/13 13:00 | Marlon Vankan v Marc Majdandzic | 7-5,7-6 |
| ITF M15 Eupen | 2023/08/12 15:00 | Simon Beaupain v Marlon Vankan | 6-7,1-6 |
| ITF M15 Eupen | 2023/08/10 11:30 | Stijn Slump v Marlon Vankan | 3-6,1-6 |