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| H | Santiago Wanderers | - | Huachipato | 1:1 (1:0) | ||
| R | Huachipato | - | Santiago Wanderers | 3:5 (0:0, 0:0) i.E. | ||
| H: 18.10.2017 23:00 | R: 25.10.2017 23:00 | Sieger: Santiago Wanderers | ||||
| H | Universidad de Chile | - | Antofagasta | 2:0 (2:0) | ||
| R | Antofagasta | - | Universidad de Chile | 1:0 (0:0) | ||
| H: 19.10.2017 02:00 | R: 26.10.2017 02:00 | Sieger: Universidad de Chile | ||||
