Stadium: Court 5 Round: 25 Ground: Clay
| ITF - M15 Meerbusch | 2023/04/26 16:10 | Jahn, Jeremy v Deney Wassermann | 6-7,6-7 |
| Challenger - Split | 2023/04/10 08:00 | Radu Albot v Jahn, Jeremy | 6-3,7-5 |
| Challenger - Split | 2023/04/09 09:40 | Jahn, Jeremy v Rudolf Molleker | 6-3,4-6,6-2 |
| Challenger - Barletta | 2023/04/03 10:30 | Jahn, Jeremy v Gabriele Piraino | 2-6,3-6 |
| Challenger - Barletta | 2023/04/02 13:25 | Valentin Vacherot v Jahn, Jeremy | 4-6,6-1,5-7 |
| Challenger Sanremo | 2023/03/26 09:50 | Alexey Vatutin v Jahn, Jeremy | 6-4,6-4 |
| Challenger - Zadar | 2023/03/21 11:15 | Jahn, Jeremy v Jozef Kovalik | 7-5,3-6,2-6 |
| Challenger - Zadar | 2023/03/20 11:00 | Nikola Milojevic v Jahn, Jeremy | 6-3,5-7,5-7 |
| ITF - M15 Antalya | 2023/04/27 12:00 | Marsel Ilhan v Manda, Calin | 0-6,7-6,6-3 |
| ITF - M15 Antalya | 2023/04/26 10:10 | Manda, Calin v Lilian Marmousez | 6-2,6-3 |
| ITF - M15 Antalya | 2023/04/18 06:55 | Manda, Calin v Louroi Martinez | 5-7,6-4,10-7 |
| ITF - M15 Antalya | 2023/04/17 10:20 | Manda, Calin v Carnevale-Miino, Tommaso | 6-2,6-3 |
| ITF - M15 Antalya | 2023/04/09 06:30 | Manda, Calin v Juan Manuel La Serna | 6-3,4-6,7-10 |
| ITF - M15 Antalya | 2023/03/25 08:00 | Peter Heller v Manda, Calin | 6-4,6-7,6-2 |
| ITF - M15 Antalya | 2023/03/24 09:20 | Manuel Mazza v Manda, Calin | 3-6,3-6 |
| ITF - M15 Antalya | 2023/03/23 09:25 | Stefan A Andreescu v Manda, Calin | 4-6,6-7 |