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 Champions
1996
D.C. United (4)
1997
D.C. United (4)
1998
Chicago Fire (1)
1999
D.C. United (4)
2000
Kansas City Wizards (1)
2001
San Jos? Earthquakes (2)
2002
Los Angeles Galaxy (2)
2003
San Jos? Earthquakes (2)
2004
D.C. United (4)
2005
Los Angeles Galaxy (2)
2006
Houston Dynamo (2)
2007
Houston Dynamo (2)
2008
Columbus Crew (1)
2009
Real Salt Lake (1)
2010
Colorado Rapids (1)