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| 1st(1st leg) | Colorado Rapids | - | Los Angeles Galaxy | 1:0 (1:0) | ||
| 2nd (2nd leg) | Los Angeles Galaxy | - | Colorado Rapids | 2:0 (2:0) | ||
| 1st(1st leg): 23/10/2004 02:30 | 2nd (2nd leg): 31/10/2004 02:00 | Winner: Los Angeles Galaxy | ||||
| 1st(1st leg) | New England Revolution | - | Columbus Crew | 1:0 (1:0) | ||
| 2nd (2nd leg) | Columbus Crew | - | New England Revolution | 1:1 (0:0) | ||
| 1st(1st leg): 24/10/2004 00:30 | 2nd (2nd leg): 31/10/2004 22:00 | Winner: New England Revolution | ||||
| 1st(1st leg) | MetroStars | - | D.C. United | 0:2 (0:0) | ||
| 2nd (2nd leg) | D.C. United | - | MetroStars | 2:0 (0:0) | ||
| 1st(1st leg): 24/10/2004 00:30 | 2nd (2nd leg): 31/10/2004 00:00 | Winner: D.C. United | ||||
| 1st(1st leg) | San Jose Earthquakes | - | Kansas City Wizards | 2:0 (1:0) | ||
| 2nd (2nd leg) | Kansas City Wizards | - | San Jose Earthquakes | 3:0 (1:0) | ||
| 1st(1st leg): 24/10/2004 22:00 | 2nd (2nd leg): 31/10/2004 01:30 | Winner: Kansas City Wizards | ||||
