Stadium: Court 1 Round: 26 Ground: Clay
| ITF M15 Palmanova | 2019/01/22 11:05 | Jahn, Jeremy v Salman, Omar | 6-2,6-4 |
| Challenger Da Nang | 2019/01/06 06:50 | Benjamin Hassan v Jahn, Jeremy | 6-2,1-6,6-3 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/01/03 02:00 | Shintaro Imai v Jahn, Jeremy | 6-4,6-4 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/01/02 05:00 | Gao, Xin v Jahn, Jeremy | 0-6,3-6 |
| Mouilleron-Le-Captif, France | 2018/11/04 14:30 | Rochette, Laurent v Jahn, Jeremy | 7-6,6-4 |
| Mouilleron-Le-Captif, France | 2018/11/03 18:55 | Jahn, Jeremy v Gigounon, Germain | 6-1,4-6,6-2 |
| Challenger Eckental | 2018/10/27 12:55 | Viktor Durasovic v Jahn, Jeremy | 6-7,6-3,6-2 |
| Challenger Ismaning | 2018/10/19 12:50 | Gleb Sakharov v Jahn, Jeremy | 6-3,3-6,6-3 |
| ITF M15 Palmanova | 2019/01/23 08:30 | Carlos Lopez Montagud v Jonas Trinker | 3-6,7-5,6-3 |
| ITF - M15 Manacor | 2019/01/15 11:30 | Eriksson, Markus v Carlos Lopez Montagud | 6-3,6-2 |
| ITF Spain F29 | 2018/09/25 10:55 | Carlos Lopez Montagud v Javier Barranco Cosano | 6-4,2-6,1-6 |
| ITF Spain F28 | 2018/09/18 08:00 | Munoz-De la Nava, Daniel v Carlos Lopez Montagud | 6-1,6-2 |
| ITF Spain F20 | 2018/07/28 15:00 | Pla Malfeito, Jaume v Carlos Lopez Montagud | 6-3,6-1 |
| ITF Spain F20 | 2018/07/27 17:15 | Maciej Rajski v Carlos Lopez Montagud | 1-6,5-7 |
| ITF Spain F20 | 2018/07/26 08:00 | Carlos Lopez Montagud v Esteve Lobato, Eduard | 7-6,6-4 |
| ITF Spain F20 | 2018/07/24 08:00 | Carlos Lopez Montagud v Imanol L Morillo | 4-6,7-6,6-4 |