Stadium: Court 15 Round: 45 Ground: Hardcourt outdoor
| Challenger Segovia | 2019/07/30 16:00 | Nicola Kuhn v Nicolas Barrientos | 6-4,6-3 |
| Challenger Amersfoort | 2019/07/17 08:00 | Nicola Kuhn v Ivan Gakhov | 5-7,6-4,3-6 |
| Challenger Braunschweig | 2019/07/08 11:00 | Nicola Kuhn v Mats Moraing | 3-6,6-2,5-7 |
| Challenger Ludwigshafen | 2019/07/03 13:00 | Nicola Kuhn v Andrej Martin | 5-7,6-4,3-6 |
| Challenger Ludwigshafen | 2019/07/02 16:00 | Gianluigi Quinzi v Nicola Kuhn | 6-3,6-7,3-6 |
| Challenger Shymkent 2 | 2019/06/14 05:00 | Nicola Kuhn v Stefano Travaglia | 2-6,2-6 |
| Challenger Shymkent 2 | 2019/06/13 05:50 | Riccardo Bonadio v Nicola Kuhn | 6-4,4-6,4-6 |
| Challenger Shymkent 2 | 2019/06/11 08:15 | Nicola Kuhn v Akira Santillan | 1-6,7-5,6-3 |
| ATP Los Cabos | 2019/07/28 01:25 | Jacob Grills v Lukas Lacko | 6-3,6-2 |
| Challenger Recanati | 2019/07/06 19:30 | Lukas Lacko v Egor Gerasimov | 3-6,6-1,3-6 |
| Challenger Recanati | 2019/07/05 19:05 | Lukas Lacko v Viktor Galovic | 7-5,6-3 |
| Challenger Recanati | 2019/07/04 09:15 | Lukas Lacko v Emilio Gomez | 7-6,4-6,6-3 |
| Challenger Recanati | 2019/07/03 14:35 | Lukas Lacko v Alen Avidzba | 6-2,6-4 |
| Wimbledon | 2019/06/24 12:30 | Ramkumar Ramanathan v Lukas Lacko | 6-3,6-2 |
| Challenger Ilkley | 2019/06/19 17:15 | Lukas Lacko v Antoine Hoang | 3-6,5-7 |
| Challenger Ilkley | 2019/06/18 10:00 | Lukas Lacko v Adrian Menendez-Maceiras | 6-3,6-4 |