| 7. Round | 01/10/2017 | 1. FC Köln | - | RB Leipzig | 1:2 | ||||
| 8. Round | 13/10/2017 | VfB Stuttgart | - | 1. FC Köln | 2:1 | ||||
| 12. Round | 18/11/2017 | 1. FSV Mainz 05 | - | 1. FC Köln | 1:0 | ||||
| 13. Round | 26/11/2017 | 1. FC Köln | - | Hertha BSC | 0:2 | ||||
| 19. Round | 20/01/2018 | Hamburger SV | - | 1. FC Köln | 0:2 | ||||
| 21. Round | 02/02/2018 | 1. FC Köln | - | Borussia Dortmund | 2:3 | ||||
| 23. Round | 17/02/2018 | 1. FC Köln | - | Hannover 96 | 1:1 | ||||
| 25. Round | 04/03/2018 | 1. FC Köln | - | VfB Stuttgart | 2:3 |  |
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| 26. Round | 12/03/2018 | Werder Bremen | - | 1. FC Köln | 3:1 | ||||
| 27. Round | 18/03/2018 | 1. FC Köln | - | Bayer Leverkusen | 2:0 | ||||
| 28. Round | 31/03/2018 | 1899 Hoffenheim | - | 1. FC Köln | 6:0 | ||||
| 29. Round | 07/04/2018 | 1. FC Köln | - | 1. FSV Mainz 05 | 1:1 | ||||
| 30. Round | 14/04/2018 | Hertha BSC | - | 1. FC Köln | 2:1 | ||||
| 32. Round | 28/04/2018 | SC Freiburg | - | 1. FC Köln | 3:2 | ||||
| 33. Round | 05/05/2018 | 1. FC Köln | - | Bayern München | 1:3 | ||||
| 34. Round | 12/05/2018 | VfL Wolfsburg | - | 1. FC Köln | 4:1 |
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