Stadium: Court 3 Round: 26 Ground: Clay
| Challenger Split | 2023/04/10 08:00 | Radu Albot v Jeremy Jahn | 6-3,7-5 |
| Challenger Split | 2023/04/09 09:40 | Jeremy Jahn v Rudolf Molleker | 6-3,4-6,6-2 |
| Challenger Barletta | 2023/04/03 10:30 | Jeremy Jahn v Gabriele Piraino | 2-6,3-6 |
| Challenger Barletta | 2023/04/02 13:25 | Valentin Vacherot v Jeremy Jahn | 4-6,6-1,5-7 |
| Challenger Sanremo | 2023/03/26 09:50 | Alexey Vatutin v Jeremy Jahn | 6-4,6-4 |
| Challenger Zadar | 2023/03/21 11:15 | Jeremy Jahn v Jozef Kovalik | 7-5,3-6,2-6 |
| Challenger Zadar | 2023/03/20 11:00 | Nikola Milojevic v Jeremy Jahn | 6-3,5-7,5-7 |
| Challenger Zadar | 2023/03/19 14:35 | Jeremy Jahn v Cezar Cretu | 6-0,1-6,6-0 |
| ITF M15 Antalya | 2023/04/18 06:55 | Marlon Vankan v Michel Hopp | 0-6,6-3,5-10 |
| ITF M15 Antalya | 2023/04/17 12:15 | Marlon Vankan v Ruben Hartig | 6-3,6-3 |
| ITF M15 Antalya | 2023/04/16 07:00 | Marlon Vankan v Gustavo Tedesco | 7-5,6-1 |
| ITF M15 Antalya | 2023/04/11 06:30 | Louroi Martinez v Marlon Vankan | 6-4,6-4 |
| ITF M15 Antalya | 2023/04/09 06:30 | Kiyan Santino Kasemi v Marlon Vankan | 0-6,1-6 |
| ITF M15 Antalya | 2023/04/03 12:30 | Marlon Vankan v Zekai Li | 1-6,2-6 |
| ITF M15 Antalya | 2023/04/02 07:00 | Marlon Vankan v Hugo Ouzilou | 6-4,6-0 |
| ITF M15 Heraklion | 2023/03/19 07:00 | Marlon Vankan v Ofer Hacohen | 3-6,1-6 |