Stadium: Center Court Round: 24 Ground: Hardcourt indoor
| Challenger - Ismaning | 2019/10/15 15:50 | Cem Ilkel v Quentin Halys | 7-6,4-6,6-7 |
| Challenger - Ismaning | 2019/10/14 17:05 | Cem Ilkel v Riccardo Bonadio | 6-3,6-2 |
| Challenger Nur-Sultan 2 | 2019/10/03 09:10 | Cem Ilkel v Evgeny Donskoy | 4-6,2-6 |
| Challenger Nur-Sultan 2 | 2019/10/01 11:05 | Hiroki Moriya v Cem Ilkel | 3-6,3-6 |
| Challenger Nur-Sultan 2 | 2019/09/30 12:35 | Artem Dubrivnyy v Cem Ilkel | 3-6,6-1,3-6 |
| Challenger - Glasgow | 2019/09/19 11:35 | Cem Ilkel v Emil Ruusuvuori | 3-6,2-6 |
| Challenger - Glasgow | 2019/09/18 11:10 | Cem Ilkel v Luca Vanni | 6-7,6-2,6-0 |
| Davis Cup | 2019/09/14 12:25 | Holger Rune v Cem Ilkel | 7-6,6-4 |
| Challenger - Ismaning | 2019/10/17 11:00 | Zdenek Kolar v Johannes Haerteis | 6-7,6-7 |
| Challenger - Ismaning | 2019/10/16 11:50 | Johannes Haerteis v Robin Haase | 6-4,6-7,7-6 |
| Challenger - Ismaning | 2019/10/14 15:10 | Johannes Haerteis v Maximilian Neuchrist | 6-4,6-4 |
| Challenger Nur-Sultan 2 | 2019/10/01 04:00 | Fabien Reboul v Johannes Haerteis | 6-4,6-7,6-3 |
| Challenger - Glasgow | 2019/09/18 15:05 | Johannes Haerteis v Tobias Kamke | 3-6,4-6 |
| Challenger - Glasgow | 2019/09/17 16:10 | Johannes Haerteis v Scott Duncan | 6-3,6-3 |
| 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 |