1. Round | 04/08/2018 | VfL Bochum | - | 1. FC Köln | 0:2 | ||||
2. Round | 13/08/2018 | 1. FC Köln | - | 1. FC Union Berlin | 1:1 | ||||
4. Round | 02/09/2018 | FC St. Pauli | - | 1. FC Köln | 3:5 | ||||
5. Round | 16/09/2018 | 1. FC Köln | - | SC Paderborn 07 | 3:5 | ||||
6. Round | 21/09/2018 | SV Sandhausen | - | 1. FC Köln | 0:2 | ||||
7. Round | 25/09/2018 | 1. FC Köln | - | FC Ingolstadt 04 | 2:1 | ||||
8. Round | 28/09/2018 | Arminia Bielefeld | - | 1. FC Köln | 1:3 | ||||
9. Round | 08/10/2018 | 1. FC Köln | - | MSV Duisburg | 1:2 | ||||
21. Round | 08/02/2019 | 1. FC Köln | - | FC St. Pauli | 4:1 | ||||
22. Round | 15/02/2019 | SC Paderborn 07 | - | 1. FC Köln | 3:2 | ||||
24. Round | 03/03/2019 | FC Ingolstadt 04 | - | 1. FC Köln | 1:2 | ||||
25. Round | 09/03/2019 | 1. FC Köln | - | Arminia Bielefeld | 5:1 | ||||
27. Round | 31/03/2019 | 1. FC Köln | - | Holstein Kiel | 4:0 | ||||
28. Round | 07/04/2019 | 1. FC Heidenheim 1846 | - | 1. FC Köln | 0:2 | ||||
26. Round | 10/04/2019 | MSV Duisburg | - | 1. FC Köln | 4:4 | ||||
29. Round | 15/04/2019 | 1. FC Köln | - | Hamburger SV | 1:1 | ||||
34. Round | 19/05/2019 | 1. FC Magdeburg | - | 1. FC Köln | 1:1 |