Stadium: Court 2 Round: 19 Ground: Clay
| 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 |
| Challenger - Zadar | 2023/03/19 14:35 | Jahn, Jeremy v Cezar Cretu | 6-0,1-6,6-0 |
| ITF - M15 Rovinj | 2023/03/15 09:55 | Giorgio Tabacco v Jahn, Jeremy | 7-5,6-3 |
| Challenger Rovereto | 2023/02/19 14:50 | Jahn, Jeremy v Giovanni Oradini | 3-6,6-4,4-6 |
| ITF - M15 Oberhaching | 2023/02/15 11:00 | Dylan Dietrich v Jahn, Jeremy | 7-5,3-6,7-6 |
| Challenger - Barletta | 2023/04/02 11:40 | Gabriele Piraino v Sumit Nagal | 6-2,6-4 |
| ITF M25 Palmanova | 2023/03/23 11:50 | Max Houkes v Gabriele Piraino | 6-1,6-0 |
| ITF M25 Palmanova | 2023/03/22 08:30 | Gabriele Piraino v Peetu Pohjola | 6-1,6-3 |
| ITF M25 Palmanova | 2023/03/15 09:55 | Gabriele Piraino v de Bakker, Thiemo | 4-6,6-7 |
| ITF - M15 Porec | 2023/03/07 15:20 | Matej Dodig v Gabriele Piraino | 6-1,6-4 |
| ITF - M25 Vila Real de Santo Antonio | 2023/02/15 10:30 | Gabriele Piraino v David Jorda Sanchis | 2-6,6-4,1-6 |
| ITF - M25 Vila Real de Santo Antonio | 2023/02/12 11:30 | Gabriele Piraino v Valentin Royer | 5-7,6-4,3-6 |
| ITF - M25 Vila Real de Santo Antonio | 2023/02/11 10:30 | Gabriele Piraino v Michael Vrbensky | 3-6,6-2,6-3 |