Stadium: Center Court 7 Round: 28 Ground: Hardcourt indoor
| ITF - M25 Trente | 2019/03/01 12:30 | Jelle Sels v Lenz, Julian | 6-7,1-6 |
| ITF - M25 Trente | 2019/02/28 10:00 | Mertens, Yannick v Lenz, Julian | 3-6,4-6 |
| ITF - M25 Trente | 2019/02/26 11:40 | Lorenzo Musetti v Lenz, Julian | 3-6,7-6,3-6 |
| ITF M25 Glasgow | 2019/02/19 10:00 | Lenz, Julian v Gijs Brouwer | 2-6,2-6 |
| ITF M25 Oberentfelden | 2019/02/09 12:30 | Evan Furness v Lenz, Julian | 6-2,6-3 |
| ITF M25 Oberentfelden | 2019/02/08 13:00 | Jerome Kym v Lenz, Julian | 0-6,6-3,2-6 |
| ITF M25 Oberentfelden | 2019/02/07 12:00 | Antoine Bellier v Lenz, Julian | 4-6,7-6,4-6 |
| ITF M25 Oberentfelden | 2019/02/05 12:00 | Stricker, Dominic Stephan v Lenz, Julian | 2-6,6-7 |
| ITF - M25 Trente | 2019/03/01 12:30 | Dubrivnyy, Artem v Jahn, Jeremy | 0-6,3-6 |
| ITF - M25 Trente | 2019/02/28 11:50 | Heyman, Christopher v Jahn, Jeremy | 6-3,3-6,4-6 |
| ITF - M25 Trente | 2019/02/27 12:10 | Bernardi, Mattia v Jahn, Jeremy | 2-6,0-6 |
| ITF M25 Glasgow | 2019/02/24 13:15 | Jahn, Jeremy v Antoine Escoffier | 2-6,6-7 |
| ITF M25 Glasgow | 2019/02/23 10:00 | Hoyt, Evan v Jahn, Jeremy | 4-6,7-6,3-6 |
| ITF M25 Glasgow | 2019/02/22 14:06 | Igor Sijsling v Jahn, Jeremy | 5-7,1-6 |
| ITF M25 Glasgow | 2019/02/22 13:00 | Igor Sijsling v Jahn, Jeremy | 5-7,1-6 |
| ITF M25 Glasgow | 2019/02/21 10:00 | Felix Corwin v Jahn, Jeremy | 6-2,6-7,4-6 |