 Its inaugural season came to an end in the 2009 MLS Cup Playoffs with a loss in the conference semifinals to the Houston Dynamo by a 1–0 aggregate score in a two-legged series.During the 2009 season, all 15 Sounders MLS regular season home matches, its home playoff match, and its four home U.S. Open Cup matches (played at Starfire Sports Complex) were sold out.Before the first match of the Sounders' second season, the club increased the number of season ticket holders to 32,000.