| 1. Round | 22/07/2017 | Fortuna Köln | - | VfR Aalen | 1:0 | ||||
| 2. Round | 29/07/2017 | FC Carl Zeiss Jena | - | Fortuna Köln | 0:2 |  |
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| 3. Round | 02/08/2017 | Fortuna Köln | - | VfL Osnabrück | 3:0 | ||||
| 4. Round | 05/08/2017 | SpVgg Unterhaching | - | Fortuna Köln | 2:2 | ||||
| 7. Round | 08/09/2017 | Werder Bremen II | - | Fortuna Köln | 1:2 | ||||
| 8. Round | 16/09/2017 | Fortuna Köln | - | Hallescher FC | 1:1 | ||||
| 10. Round | 23/09/2017 | Fortuna Köln | - | Sportfreunde Lotte | 0:3 | ||||
| 11. Round | 30/09/2017 | SG Sonnenhof Großaspach | - | Fortuna Köln | 1:3 | ||||
| 13. Round | 21/10/2017 | SV Meppen | - | Fortuna Köln | 1:0 | ||||
| 14. Round | 28/10/2017 | Fortuna Köln | - | Würzburger Kickers | 2:1 | |
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| 15. Round | 03/11/2017 | Preußen Münster | - | Fortuna Köln | 1:1 | ||||
| 16. Round | 18/11/2017 | Fortuna Köln | - | 1. FC Magdeburg | 1:2 | ||||
| 17. Round | 25/11/2017 | Hansa Rostock | - | Fortuna Köln | 5:3 |
Germany