Stadium: Center Court Round: 28 Ground: Carpet indoor
| 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 |
| ATP Hertogenbosch | 2019/06/08 09:00 | Jannik Sinner v Lukas Lacko | 6-7,7-6,6-2 |
| ATP Hamburg | 2019/07/21 11:55 | Gianluca Mager v Julian Lenz | 2-6,7-6,5-7 |
| ATP Hamburg | 2019/07/20 11:45 | Julian Lenz v Joao Domingues | 6-3,4-6,7-6 |
| Challenger Amersfoort | 2019/07/16 08:00 | Julian Lenz v Igor Sijsling | 4-6,1-6 |
| Challenger Braunschweig | 2019/07/08 13:05 | Julian Lenz v Yannick Hanfmann | 5-7,4-6 |
| Challenger Ludwigshafen | 2019/07/02 09:00 | Johannes Haerteis v Julian Lenz | 3-6,7-6,7-6 |
| Challenger Parma | 2019/06/21 09:00 | Jacopo Berrettini v Julian Lenz | 1-6,3-6 |
| Challenger Parma | 2019/06/20 09:25 | Filip Peliwo v Julian Lenz | 3-6,1-6 |
| Challenger Parma | 2019/06/19 10:05 | Julian Lenz v Alessandro Giannessi | 6-1,6-4 |