STP public registration opens at 10 a.m. on Tuesday, Feb. 9!
Public registration opens at 10 a.m. on Tuesday, Feb. 9 for the Seattle to Portland presented by Alaska Airlines

The largest cycling event in the region tops at 10,000 cyclists; registration sells out every year

Portland or bust! Public registration for the 37th annual Group Health Seattle to Portland presented by Alaska Airlines (STP) opens Tuesday, February 9 at 10 a.m. Cascade members have had early registration access. The 206-mile Group Health STP takes place on July 16 & 17. Topping out at 10,000 riders, the STP is the largest bicycle event in the region and sells out each year.

An epic journey connecting two of America’s great bicycling cities, STP riders will also have exclusive access through Joint Base Lewis-McChord on beautiful, low-traffic roads. All of the official STP free food stops will feature exciting new food additions, as well as all new giveaway items available at the finish line to commemorate riders' 206-mile accomplishment.

Full route and additional information available at

The Group Health STP presented by Alaska Airlines is made possible with support from the local communities through which the route passes. The STP is a joint fundraiser between Cascade Bicycle Club and Washington Bikes. In addition to supporting Cascade and Washington Bikes programs, rider registration fees help give back to the communities we pass through and the organizations that thrive along the route.

2015 STP facts:
  • 8,212 Washington riders; 1,242 Oregon riders
  • 26 percent of Washington riders are from Seattle; 48 percent of Oregon riders are from Portland
  • Riders represent 45 of 50 U.S. states and seven countries
  • 1 in 4 STP riders identifies as a woman
  • Oldest rider: 89


About Cascade Bicycle Club

Cascade Bicycle Club, the nation’s largest statewide bicycle organization, is powered by 15,000 members and serves bike riders of all ages and abilities throughout the Puget Sound region and across Washington state. With a mission to improve lives through bicycling, we deliver community and school-based education programs, grassroots organizing workshops, free group rides, world-class events and more. Our signature programs include events like the STP and RSVP; advocacy work like Connect Puget Sound; and education programs like Basics of Bicycling, the Major Taylor Project and more. Learn more at

About Washington Bikes

Washington Bikes grows bicycling all across the state of Washington every day. We advocate for bicyclists’ rights and hold officials accountable at every level of government, working with them to shape the policies that will make bicycling a safe, accessible form of transportation, travel and recreation. Through our efforts we increase funding for bicycle facilities; provide tools for local advocates to improve their communities; and promote the health, safety and economic benefits of bicycling. Our work and that of our many partner organizations means more bikes across Washington, the #1 Bicycle Friendly State in America (eight years in a row)! To learn more, visit

Media contact

Brent Tongco
Cascade Bicycle Club
Senior Director of Communications & Marketing