Stadium: Center Court Round: 24 Ground: Carpet indoor
| Challenger Szczecin | 2019/09/11 14:00 | Albert Ramos-Vinolas v Johannes Haerteis | 6-2,6-4 |
| Challenger Szczecin | 2019/09/09 12:00 | Johannes Haerteis v Mathieu Perchicot | 2-6,6-4,6-2 |
| Challenger L'Aquila | 2019/08/24 14:55 | Dmitry Popko v Johannes Haerteis | 7-6,6-2 |
| Challenger L'Aquila | 2019/08/22 09:35 | Juan Pablo Ficovich v Johannes Haerteis | 3-6,6-7 |
| Challenger L'Aquila | 2019/08/21 08:00 | Johannes Haerteis v Nino Serdarusic | 7-6,6-3 |
| Challenger L'Aquila | 2019/08/19 09:40 | Riccardo Bonadio v Johannes Haerteis | 4-6,4-6 |
| Challenger Meerbusch | 2019/08/13 09:40 | Johannes Haerteis v Eduard Esteve Lobato | 6-4,7-5 |
| Challenger Augsburg | 2019/08/06 08:00 | Johannes Haerteis v Louis Wessels | 6-7,5-7 |
| Austria Bundesliga | 2019/09/08 09:00 | Lucas Miedler v Maximilian Neuchrist | 6-2,6-3 |
| Austria Bundesliga | 2019/09/07 10:00 | Maximilian Neuchrist v Florian Mayer | 6-7,6-3,3-6 |
| Challenger Cassis | 2019/09/02 11:55 | Maximilian Neuchrist v Hugo Grenier | 4-6,3-6 |
| Challenger Granby | 2019/07/24 16:10 | Akira Santillan v Maximilian Neuchrist | 0-6,7-6,4-6 |
| Challenger Granby | 2019/07/23 15:10 | Maximilian Neuchrist v Dennis Novikov | 6-4,7-6 |
| Challenger Gatineau | 2019/07/18 19:50 | Maximilian Neuchrist v Norbert Gombos | 6-7,3-6 |
| Challenger Gatineau | 2019/07/18 01:25 | Brydan Klein v Maximilian Neuchrist | 4-6,5-7 |
| Challenger Gatineau | 2019/07/15 18:30 | Zhe Li v Maximilian Neuchrist | 1-6,1-6 |