The Western Conference is one of Major League Soccer's two conferences, along with the Eastern Conference. The division of the conferences broadly follows the path of the Mississippi River from the Great Lakes to the Gulf of Mexico, with clubs on, or west of the river in the Western Conference.
The 2012 Colorado Rapids season was the team's eighteenth year of existence. The team's first match was on March 10 at Dick's Sporting Goods Park.
The 2012 FC Dallas season was the seventeenth of the team's existence. The team's first game was on March 11 at FC Dallas Stadium. The team failed to make the playoffs for the first time since 2009.
The 2014 MLS SuperDraft was the fifteenth SuperDraft presented by Major League Soccer. The first two rounds of the four round draft took place on January 16, 2014, in Philadelphia, Pennsylvania at the Philadelphia Convention Center. Rounds three and four took place on January 21, 2014, via conference call.
The 2015 MLS SuperDraft was the sixteenth SuperDraft conducted by Major League Soccer. The SuperDraft is held each year in conjunction with the annual National Soccer Coaches Association of America convention. The 2015 convention was held January 14–18, 2015 in Philadelphia, Pennsylvania.
The 2015 Sporting Kansas City season was the twentieth season of the team's existence in Major League Soccer and the fifth year played under the Sporting Kansas City moniker.
The 2015 FC Dallas season was the club's 20th season in existence in Major League Soccer, the top tier of the American soccer pyramid. Including the Dallas Tornado soccer franchise of the original NASL, this is the 35th season of professional soccer in Dallas. The season saw the team finish first in the Western Conference in the regular season for the second time.
The 2015 Portland Timbers season was the 5th season for the Portland Timbers in Major League Soccer (MLS), the top flight professional soccer league in the United States and Canada this season resulted in the Timbers winning the 2015 MLS Cup.
The 2015 San Jose Earthquakes season was the club's 33rd year of existence, their 17th season in Major League Soccer and their 8th consecutive season in the top-flight of American soccer. It was the club's first season playing in Avaya Stadium, their new soccer-specific stadium in San Jose, California.
The 2016 LA Galaxy season was the club's twenty-first season of existence, their twenty-first in Major League Soccer and their twenty-first consecutive season in the top flight of American soccer.
The 2016 season was the eighth season for Seattle Sounders FC in Major League Soccer (MLS), the top flight of professional club soccer in the United States. The team were managed by Sigi Schmid until his firing in late July; he was replaced by Brian Schmetzer on an interim basis. The Sounders won their first MLS Cup in the 2016 final against Toronto FC, which ended in a penalty shootout after a scoreless draw.
The 2016 Vancouver Whitecaps FC season was the Whitecaps' sixth season in Major League Soccer, the top tier of soccer in the United States and Canada.
The 2016 Houston Dynamo season was the club's 11th season of existence since joining Major League Soccer for the 2006 season.
The 2016 San Jose Earthquakes season was the club's 34th year of existence, their 19th season in Major League Soccer and their 9th consecutive season in the top-flight of American soccer.
The 2017 San Jose Earthquakes season was the club's 35th year of existence, their 20th season in Major League Soccer and their 10th consecutive season in the top-flight of American soccer.
The 2021 LA Galaxy season was the club's 26th season of existence, and their 26th in Major League Soccer, the top-tier of the American soccer pyramid. LA Galaxy played its home matches at the stadium Dignity Health Sports Park in the LA suburb of Carson, California. The Galaxy attempted to make the playoffs after failing to qualify in 2020, but were ultimately unsuccessful.
The 2021 Colorado Rapids season was the club's twenty-sixth season of existence and their twenty-sixth consecutive season in Major League Soccer (MLS), the top flight of American soccer.
The 2021 Sporting Kansas City season was the twenty-sixth season of the team's existence in Major League Soccer and the eleventh year played under the Sporting Kansas City moniker. The season began on April 17.
The 2021 season was the San Jose Earthquakes' 39th year of existence, their 24th season in Major League Soccer and their 14th consecutive season in the top-flight of American soccer.
The 2021 Minnesota United FC season was the club's twelfth season of existence, and fifth in Major League Soccer. Their season began on April 16, 2021 where they lost to the Seattle Sounders FC 4-0 in Seattle. The club will play its home matches at Allianz Field in Saint Paul, Minnesota. The club reached the MLS Cup Playoffs for a third consecutive year, but lost in their first match to the Portland Timbers.
