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| 1st(1st leg) | La Serena | - | Colo-Colo | 1:1 | ||
| 2nd (2nd leg) | Colo-Colo | - | La Serena | 1:4 pso | ||
| 1st(1st leg): 25/11/2005 | 2nd (2nd leg): 03/12/2005 | Winner: La Serena | ||||
| 1st(1st leg) | Cobresal | - | Huachipato | 2:1 | ||
| 2nd (2nd leg) | Huachipato | - | Cobresal | 1:1 | ||
| 1st(1st leg): 26/11/2005 | 2nd (2nd leg): 03/12/2005 | Winner: Cobresal | ||||
| 1st(1st leg) | Cobreloa | - | Universidad Católica | 1:1 | ||
| 2nd (2nd leg) | Universidad Católica | - | Cobreloa | 2:1 | ||
| 1st(1st leg): 27/11/2005 | 2nd (2nd leg): 04/12/2005 | Winner: Universidad Católica | ||||
| 1st(1st leg) | Universidad de Concepción | - | Universidad de Chile | 1:2 | ||
| 2nd (2nd leg) | Universidad de Chile | - | Universidad de Concepción | 0:0 | ||
| 1st(1st leg): 27/11/2005 | 2nd (2nd leg): 04/12/2005 | Winner: Universidad de Chile | ||||
