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| 1st(1st leg) | Seattle Sounders | - | Houston Dynamo | 0:0 (0:0) | ||
| 2nd (2nd leg) | Houston Dynamo | - | Seattle Sounders | 1:0 (0:0, 0:0) aet | ||
| 1st(1st leg): 30/10/2009 02:20 | 2nd (2nd leg): 08/11/2009 20:00 | Winner: Houston Dynamo | ||||
| 1st(1st leg) | Real Salt Lake | - | Columbus Crew | 1:0 (0:0) | ||
| 2nd (2nd leg) | Columbus Crew | - | Real Salt Lake | 2:3 (2:2) | ||
| 1st(1st leg): 31/10/2009 22:20 | 2nd (2nd leg): 06/11/2009 01:00 | Winner: Real Salt Lake | ||||
| 1st(1st leg) | New England Revolution | - | Chicago Fire | 2:1 (1:1) | ||
| 2nd (2nd leg) | Chicago Fire | - | New England Revolution | 2:0 (1:0) | ||
| 1st(1st leg): 01/11/2009 19:00 | 2nd (2nd leg): 08/11/2009 01:30 | Winner: Chicago Fire | ||||
| 1st(1st leg) | CD Chivas | - | Los Angeles Galaxy | 2:2 (1:2) | ||
| 2nd (2nd leg) | Los Angeles Galaxy | - | CD Chivas | 1:0 (0:0) | ||
| 1st(1st leg): 01/11/2009 22:00 | 2nd (2nd leg): 09/11/2009 00:30 | Winner: Los Angeles Galaxy | ||||
