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| 1st(1st leg) | Cobreloa | - | Colo-Colo | 4:1 | ||
| 2nd (2nd leg) | Colo-Colo | - | Cobreloa | 1:1 | ||
| 1st(1st leg): 08/12/2004 | 2nd (2nd leg): 11/12/2004 | Winner: Cobreloa | ||||
| 1st(1st leg) | Unión Española | - | Universidad Católica | 3:1 | ||
| 2nd (2nd leg) | Universidad Católica | - | Unión Española | 3:4 pso | ||
| 1st(1st leg): 09/12/2004 | 2nd (2nd leg): 12/12/2004 | Winner: Unión Española | ||||
