2012 Apertura
| Pl | W | D | L | Diff | Pts | |||
| 1 | U. De Chile | 17 | 13 | 1 | 3 | 44:14 | 30 | 40 |
| 2 | O'Higgins | 17 | 11 | 2 | 4 | 31:15 | 16 | 35 |
| 3 | Deportes Iquique | 17 | 10 | 5 | 2 | 30:14 | 16 | 35 |
| 4 | U. Catolica | 17 | 8 | 6 | 3 | 31:17 | 14 | 30 |
| 5 | U. Espanola | 17 | 8 | 3 | 6 | 38:28 | 10 | 27 |
| 6 | Colo Colo | 17 | 7 | 5 | 5 | 22:21 | 1 | 26 |
| 7 | Union La Calera | 17 | 6 | 6 | 5 | 21:18 | 3 | 24 |
| 8 | Cobreloa | 17 | 7 | 2 | 8 | 23:25 | -2 | 23 |
| 9 | Huachipato | 17 | 6 | 5 | 6 | 25:28 | -3 | 23 |
| 10 | U. De Concepcion | 17 | 5 | 6 | 6 | 23:27 | -4 | 21 |
| 11 | S. Wanderers | 17 | 6 | 2 | 9 | 28:30 | -2 | 20 |
| 12 | A. Italiano | 17 | 5 | 5 | 7 | 24:32 | -8 | 20 |
| 13 | La Serena | 17 | 5 | 4 | 8 | 24:33 | -9 | 19 |
| 14 | Rangers | 17 | 5 | 3 | 9 | 17:25 | -8 | 18 |
| 15 | Palestino | 17 | 5 | 3 | 9 | 14:26 | -12 | 18 |
| 16 | Antofagasta | 17 | 4 | 5 | 8 | 10:20 | -10 | 17 |
| 17 | Cobresal | 17 | 3 | 4 | 10 | 17:40 | -23 | 13 |
| 18 | San Felipe | 17 | 2 | 7 | 8 | 12:21 | -9 | 13 |
2012 Apertura - Play Offs
Quarter-finals
| 1 | U. Espanola | U. Catolica | 1 : 1, 3 : 0 |
| 2 | Union La Calera | O'Higgins | 2 : 3, 0 : 1 |
| 3 | Colo Colo | Deportes Iquique | 2 : 1, 3 : 3 |
| 4 | Cobreloa | U. De Chile | 1 : 2, 0 : 2 |
Semi-finals
| 1 | U. Espanola | O'Higgins | 1 : 2, 1 : 0 |
| 2 | Colo Colo | U. De Chile | 0 : 4, 2 : 0 |
Final
| 1 | O'Higgins | U. De Chile | 1 : 3, 2 : 1 |
2012 Clausura
| Pl | W | D | L | Diff | Pts | |||
| 1 | Colo Colo | 17 | 9 | 6 | 2 | 32:14 | 18 | 33 |
| 2 | U. De Chile | 17 | 9 | 6 | 2 | 32:20 | 12 | 33 |
| 3 | Palestino | 17 | 9 | 3 | 5 | 22:18 | 4 | 30 |
| 4 | Deportes Iquique | 17 | 9 | 3 | 5 | 24:27 | -3 | 30 |
| 5 | Rangers | 17 | 8 | 6 | 3 | 27:19 | 8 | 30 |
| 6 | Huachipato | 17 | 7 | 4 | 6 | 23:21 | 2 | 25 |
| 7 | U. Espanola | 17 | 7 | 3 | 7 | 28:28 | 0 | 24 |
| 8 | A. Italiano | 17 | 6 | 5 | 6 | 29:26 | 3 | 23 |
| 9 | U. Catolica | 17 | 6 | 5 | 6 | 24:23 | 1 | 23 |
| 10 | Cobresal | 17 | 5 | 7 | 5 | 22:24 | -2 | 22 |
| 11 | San Felipe | 17 | 6 | 3 | 8 | 19:21 | -2 | 21 |
| 12 | Cobreloa | 17 | 6 | 2 | 9 | 23:24 | -1 | 20 |
| 13 | Antofagasta | 17 | 6 | 2 | 9 | 26:29 | -3 | 20 |
| 14 | O'Higgins | 17 | 5 | 5 | 7 | 22:27 | -5 | 20 |
| 15 | S. Wanderers | 17 | 4 | 7 | 6 | 27:28 | -1 | 19 |
| 16 | U. De Concepcion | 17 | 3 | 6 | 8 | 17:28 | -11 | 15 |
| 17 | Union La Calera | 17 | 2 | 9 | 6 | 11:18 | -7 | 15 |
| 18 | La Serena | 17 | 2 | 6 | 9 | 20:33 | -13 | 12 |
Promotion ~ Primera Division (Clausura ~ Play Offs: )
Promotion ~ Copa Sudamericana
2012 Clausura - Play Offs
Quarter-finals
| 1 | U. Espanola | U. De Chile | 4 : 1, 0 : 0 |
| 2 | A. Italiano | Colo Colo | 5 : 4, 0 : 2 |
| 3 | Huachipato | Palestino | 2 : 1, 1 : 1 |
| 4 | Deportes Iquique | Rangers | 0 : 1, 0 : 1 |
Semi-finals
| 1 | U. Espanola | Colo Colo | 2 : 0, 3 : 1 |
| 2 | Huachipato | Rangers | 1 : 1, 1 : 0 |
Final
| 1 | U. Espanola | Huachipato | 1 : 4, 3 : 1 |
2012 Relegation
Final
| 1 | Everton | U. De Concepcion | 3 : 1, 1 : 0 |
| 2 | Barnechea | Cobresal | 0 : 3, 3 : 1 |
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