Since 1975
Timbers vs. Sounders
The Cascadia Derby — MLS's most authentic rivalry
The Timbers-Sounders rivalry, the centerpiece of the Cascadia Cup, predates both teams' MLS memberships by decades. Portland and Seattle have been competing in various professional and semi-professional soccer leagues since 1975, and the rivalry between these two Pacific Northwest cities runs deeper than any other in American soccer. Rain, passion, and world-class supporter culture define the Cascadia Derby.