| 2. Round | 20/02/2005 | Newell's Old Boys | - | Rosario Central | 0:0 | ||||
| 3. Round | 27/02/2005 | Huracán de Tres Arroyos | - | Newell's Old Boys | 0:2 | ||||
| 4. Round | 05/03/2005 | Newell's Old Boys | - | Colón de Santa Fe | 1:1 | ||||
| 5. Round | 12/03/2005 | Banfield | - | Newell's Old Boys | 0:1 | ||||
| 6. Round | 19/03/2005 | Newell's Old Boys | - | Argentinos Juniors | 1:1 | ||||
| 7. Round | 03/04/2005 | Instituto de Córdoba | - | Newell's Old Boys | 4:3 | ||||
| 12. Round | 07/05/2005 | Quilmes | - | Newell's Old Boys | 2:0 | ||||
| 13. Round | 15/05/2005 | Newell's Old Boys | - | Almagro | 2:1 |  |
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| 14. Round | 21/05/2005 | Lanús | - | Newell's Old Boys | 0:0 | ||||
| 15. Round | 28/05/2005 | Newell's Old Boys | - | San Lorenzo | 1:1 | ||||
| 16. Round | 11/06/2005 | Olimpo de Bahía Blanca | - | Newell's Old Boys | 1:0 | ||||
| 17. Round | 19/06/2005 | Newell's Old Boys | - | Boca Juniors | 1:0 | |
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| 18. Round | 25/06/2005 | Gimnasia de La Plata | - | Newell's Old Boys | 1:0 |  |
Argentina