2024

LA Galaxy

2023

Columbus Crew

2022

Los Angeles FC

2021

New York City FC

2020

Columbus Crew

2019

Seattle Sounders FC

2018

Atlanta United

2017

Toronto FC

2016

Seattle Sounders FC

2015

Portland Timbers

2014

LA Galaxy

2013

Sporting Kansas City

2012

LA Galaxy

2011

LA Galaxy

2010

Colorado Rapids

2009

Real Salt Lake

2008

Columbus Crew

2007

Houston Dynamo

2006

Houston Dynamo

2005

LA Galaxy

2004

2003

San Jose Earthquakes

2002

LA Galaxy

2001

San Jose Earthquakes

2000

Sporting Kansas City

1999

DC United

1998

Chicago Fire

1997

DC United

1996

DC United