The 2013 MLS Cup Playoffs are finally here! The Sounders have qualified for the postseason for the fifth consecutive season will battle for MLS' ultimate prize once again as the fourth seed in the Western Conference.
|Seattle Sounders FC vs. Colorado Rapids
Structure: Single match elimination to be played at the higher seed's home venue.
|First||Seattle Sounders FC vs. Portland Timbers
|Second||Portland Timbers vs. Seattle Sounders FC
|First||LA Galaxy vs. Real Salt Lake
||LA wins, 1-0
|Second||Real Salt Lake vs. LA Galaxy
||Rio Tinto Stadium
||RSL wins, 2-0
Structure: Two match aggregate goal. First match to be played at lower seed's home venue. Second to be played at higher seed's home venue.
|First||Real Salt Lake vs. Portland Timbers||Rio Tinto Stadium||RSL wins, 4-2
|Second||Portland Timbers vs. Real Salt Lake||JELD-WEN Field||RSL wins, 1-0|
Structure: Lower seeded team hosts first leg of two leg goal aggregate series to determine MLS Cup Final participants.
|Sporting Kansas City vs. Real Salt Lake||Sporting Park||SKC wins, 1-1 (PKs 7-5)