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| 1st(1st leg) | Houston Dynamo | - | D.C. United | 3:1 (0:1) | ||
| 2nd (2nd leg) | D.C. United | - | Houston Dynamo | 1:1 (0:1) | ||
| 1st(1st leg): 11/11/2012 21:00 | 2nd (2nd leg): 18/11/2012 21:00 | Winner: Houston Dynamo | ||||
| 1st(1st leg) | Los Angeles Galaxy | - | Seattle Sounders | 3:0 (0:0) | ||
| 2nd (2nd leg) | Seattle Sounders | - | Los Angeles Galaxy | 2:1 (1:0) | ||
| 1st(1st leg): 12/11/2012 02:00 | 2nd (2nd leg): 19/11/2012 02:00 | Winner: Los Angeles Galaxy | ||||
