Stadium: Court 11 Round: 28 Ground: Clay
| ITF Tunisia F1 | 2016/01/15 09:00 | Jahn, Jeremy v Eriksson, Markus | 6-3,6-1 |
| Lasne, Singles Qualifying M-ITF-BEL-02A | 2019/07/05 13:00 | Zizou Bergs v Jahn, Jeremy | 6-4,2-6,6-7 |
| Lasne, Singles Qualifying M-ITF-BEL-02A | 2019/07/04 09:40 | Antonescu, Vasile v Jahn, Jeremy | 2-6,3-6 |
| Lasne, Singles Qualifying M-ITF-BEL-02A | 2019/07/03 17:30 | Simon Beaupain v Jahn, Jeremy | 1-6,1-6 |
| ITF M25 Arlon | 2019/06/26 08:00 | Ehrat, Sandro v Jahn, Jeremy | 6-4,6-1 |
| Challenger Bratislava | 2019/06/19 14:50 | Jahn, Jeremy v Martin, Andrej | 7-6,2-6,2-6 |
| Challenger Bratislava | 2019/06/17 15:20 | Jahn, Jeremy v Simon, Tobias | 6-4,6-7,6-1 |
| Karlsruhe, Singles M-ITF-GER-04A | 2019/06/05 13:40 | Jahn, Jeremy v Frawley, James | 6-2,3-6,7-6 |
| ITF M15 Quinta Do Lago | 2019/03/20 15:55 | Binding, Jonathan v Jahn, Jeremy | 2-6,1-6 |
| Lasne, Singles Qualifying M-ITF-BEL-02A | 2019/07/05 11:00 | Eriksson, Markus v Facundo Mena | 7-6,6-4 |
| Lasne, Singles Qualifying M-ITF-BEL-02A | 2019/07/04 12:00 | Eriksson, Markus v Giusca, Teodor | 6-2,6-4 |
| Lasne, Singles Qualifying M-ITF-BEL-02A | 2019/07/03 10:15 | Eriksson, Markus v Perchicot, Mathieu | 6-7,6-4,6-3 |
| ITF M25 Arlon | 2019/06/27 10:00 | Eriksson, Markus v Zizou Bergs | 4-6,4-6 |
| ITF M25 Arlon | 2019/06/26 08:00 | Eriksson, Markus v Ouahab, Lamine | 6-3,6-4 |
| Kaltenkirchen, Singles Qualifying M-ITF-GER-05A | 2019/06/14 11:55 | Lindell, Christian v Eriksson, Markus | 6-2,6-4 |
| Kaltenkirchen, Singles Qualifying M-ITF-GER-05A | 2019/06/13 11:10 | Eriksson, Markus v Erler, Alexander | 6-0,6-7,6-4 |
| Kaltenkirchen, Singles Qualifying M-ITF-GER-05A | 2019/06/12 10:30 | Eriksson, Markus v Guttau, Niklas | 6-3,6-1 |