| 1. Round | 11/02/2005 | Olimpo de Bahía Blanca | - | San Lorenzo | 3:0 |  |
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| 2. Round | 20/02/2005 | San Lorenzo | - | Boca Juniors | 3:0 | ||||
| 4. Round | 06/03/2005 | San Lorenzo | - | Independiente | 2:4 | ||||
| 5. Round | 13/03/2005 | Vélez Sarsfield | - | San Lorenzo | 2:0 | ||||
| 6. Round | 19/03/2005 | San Lorenzo | - | Rosario Central | 1:3 | ||||
| 7. Round | 02/04/2005 | Huracán de Tres Arroyos | - | San Lorenzo | 2:2 |  |
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| 8. Round | 10/04/2005 | San Lorenzo | - | Colón de Santa Fe | 0:0 | ||||
| 9. Round | 17/04/2005 | Banfield | - | San Lorenzo | 1:0 | ||||
| 10. Round | 23/04/2005 | San Lorenzo | - | Argentinos Juniors | 0:2 |
Colombia