| 1. Round | 01/08/2004 | VfL Wolfsburg II | - | Arminia Bielefeld II | 1:1 |  |
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| 2. Round | 07/08/2004 | Arminia Bielefeld II | - | KFC Uerdingen 05 | 4:1 | ||||
| 4. Round | 14/08/2004 | Arminia Bielefeld II | - | Wuppertaler SV | 2:2 | ||||
| 7. Round | 03/09/2004 | VfL Osnabrück | - | Arminia Bielefeld II | 2:2 | |
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| 8. Round | 14/09/2004 | Arminia Bielefeld II | - | Hamburger SV II | 3:4 | |
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| 9. Round | 17/09/2004 | FC St. Pauli | - | Arminia Bielefeld II | 2:1 |  |
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| 14. Round | 23/10/2004 | Fortuna Düsseldorf | - | Arminia Bielefeld II | 3:1 | ||||
| 16. Round | 06/11/2004 | Chemnitzer FC | - | Arminia Bielefeld II | 5:1 | |
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| 18. Round | 20/11/2004 | Preußen Münster | - | Arminia Bielefeld II | 2:0 | ||||
| 21. Round | 11/12/2004 | KFC Uerdingen 05 | - | Arminia Bielefeld II | 4:0 | |
Germany