| Year | Winner | Country | ||
|---|---|---|---|---|
| 2022 |
|
Los Angeles FC |
|
USA |
| 2021 |
|
New York City FC |
|
USA |
| 2020 |
|
Columbus Crew |
|
USA |
| 2019 |
|
Seattle Sounders |
|
USA |
| 2018 |
|
Atlanta United FC |
|
USA |
| 2017 |
|
Toronto FC |
|
Canada |
| 2016 |
|
Seattle Sounders |
|
USA |
| 2015 |
|
Portland Timbers |
|
USA |
| 2014 |
|
Los Angeles Galaxy |
|
USA |
| 2013 |
|
Sporting Kansas City |
|
USA |
| 2012 |
|
Los Angeles Galaxy |
|
USA |
| 2011 |
|
Los Angeles Galaxy |
|
USA |
| 2010 |
|
Colorado Rapids |
|
USA |
| 2009 |
|
Real Salt Lake |
|
USA |
| 2008 |
|
Columbus Crew |
|
USA |
| 2007 |
|
Houston Dynamo |
|
USA |
| 2006 |
|
Houston Dynamo |
|
USA |
| 2005 |
|
Los Angeles Galaxy |
|
USA |
| 2004 |
|
D.C. United |
|
USA |
| 2003 |
|
San Jose Earthquakes |
|
USA |
| 2002 |
|
Los Angeles Galaxy |
|
USA |
| 2001 |
|
San Jose Earthquakes |
|
USA |
| 2000 |
|
Kansas City Wizards |
|
USA |
| 1999 |
|
D.C. United |
|
USA |
| 1998 |
|
Chicago Fire |
|
USA |
| 1997 |
|
D.C. United |
|
USA |
| 1996 |
|
D.C. United |
|
USA |