| 5. Round | 17/09/2005 | 1. FC Köln | - | Bor. Mönchengladbach | 2:1 | ||||
| 7. Round | 25/09/2005 | 1. FC Köln | - | Hertha BSC | 0:1 | ||||
| 8. Round | 01/10/2005 | 1. FC Nürnberg | - | 1. FC Köln | 2:1 |  |
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| 9. Round | 16/10/2005 | 1. FC Köln | - | Hannover 96 | 1:4 | ||||
| 10. Round | 22/10/2005 | Eintracht Frankfurt | - | 1. FC Köln | 6:3 | ||||
| 13. Round | 19/11/2005 | 1. FC Köln | - | FC Schalke 04 | 2:2 | |
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| 15. Round | 03/12/2005 | Hamburger SV | - | 1. FC Köln | 3:1 | ||||
| 14. Round | 06/12/2005 | MSV Duisburg | - | 1. FC Köln | 1:1 | ||||
| 16. Round | 11/12/2005 | 1. FC Köln | - | Werder Bremen | 1:4 | ||||
| 17. Round | 17/12/2005 | Arminia Bielefeld | - | 1. FC Köln | 3:2 | ||||
| 18. Round | 28/01/2006 | 1. FSV Mainz 05 | - | 1. FC Köln | 4:2 | ||||
| 19. Round | 04/02/2006 | 1. FC Köln | - | VfB Stuttgart | 0:0 | ||||
| 21. Round | 12/02/2006 | 1. FC Köln | - | Borussia Dortmund | 0:0 | ||||
| 24. Round | 04/03/2006 | Hertha BSC | - | 1. FC Köln | 2:4 | ||||
| 26. Round | 18/03/2006 | Hannover 96 | - | 1. FC Köln | 1:0 | |
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| 34. Round | 13/05/2006 | 1. FC Köln | - | Arminia Bielefeld | 4:2 |
Poland