2024 — Los Ángeles Galaxy
2023 — Columbus Crew
2022 — LAFC
2021 — New York City
2020 — Columbus Crew
2019 — Seattle Sounders
2018 — Atlanta United
2017 — Toronto
2016 — Seattle Sounders
2015 — Portland Timbers
2014 — Los Ángeles Galaxy
2013 — Sporting Kansas City
2012 — Los Ángeles Galaxy
2011 — Los Ángeles Galaxy
2010 — Colorado Rapids
2009 — Real Salt Lake
2008 — Columbus Crew
2007 — Houston Dynamo
2006 — Houston Dynamo
2005 — Los Ángeles Galaxy
2004 — D.C. United
2003 — San José Earthquakes
2002 — Los Ángeles Galaxy
2001 — San José Earthquakes
2000 — Kansas City Wizards
1999 — D.C. United
1998 — Chicago Fire
1997 — D.C. United
1996 — D.C. United
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