Kaiser Permanente STP presented by Alaska Airlines

2016 STP

UPDATE (7/26/17): Timing chip results are in—see them here now!


See 2017 rider pictures from MarathonFoto here


Total number of 2017 STP registered riders: 8,172

Number of 1-day riders: 2,082


Saturday, July 14- Sunday, July 15, 2018

This 200+ mile bicycle ride is the largest multi-day bicycle event in the Northwest, with up to 10,000 participants riding from Seattle to Portland in one or two days. The route takes you through the scenic valleys, forests, and farmlands of western Washington and Oregon. Come ride what Bicycling Magazine has listed as one of the best cycling events in the nation! REGISTER TODAY!


  • An epic journey connecting two of America's great bicycling cities
  • The choice of a one-day or two-day event 
  • An amazing network of volunteers and organizations to help you reach the finish line
  • A diverse community of cyclists working towards one common goal: Portland or BUST!

Fun Facts:

  • 10,000 registered riders from 7 countries and 45 states
  • Eldest rider: 89
  • 8,212 Washington riders (2,433 from Seattle)
  • 1,242 Oregon riders (573 from Portland)
  • STP sells out to its max. capacity of 10,000 riders every year (often by March). Don't delay!

2017 Ride Guide

Download & print the 2017 Ride Guide.

Coming from out of town?  Our presenting sponsor, Alaska Airlines, is offering discount flights to registered riders.  

Who does your registration fee support?

The Kaiser Permanente Seattle to Portland presented by Alaska Airlines is a joint fundraiser for Cascade Bicycle Club and WA Bikes-- profits are shared equally. Your registration fee helps Cascade provide bicycle education programs for children, families, school groups and everyone else who wants to ride a bike. It also helps us advocate for safer, more connected bicycle infrastructure throughout the state and region. And thanks to you, we’re able to offer fun and challenging riding events and free group rides every day of the year! Your participation truly helps improve lives through bicycling.

Our events are made possible with support from the local communities through which we ride. In addition to supporting Cascade’s programs, your registration fee helps Cascade give back to these communities and the organizations that thrive there. We’re grateful for all their continued support.

Filmed and produced by After the Uniform Films 

Thanks to our Title Sponsor

We’re excited to announce Kaiser Permanente as the title sponsor of the 38th Annual Kaiser Permanente Seattle to Portland presented by Alaska Airlines! We’re thrilled and grateful to have Kaiser Permanente’s support on the road to Portland. 

Thanks to our Presenting Sponsor

We’re excited to welcome back Alaska Airlines for their second year as presenting sponsor of this year’s event. Alaska invites you to start exploring at 30,000 feet. Your journey becomes part of the adventure as you stream entertainment directly to your device, enjoy food offerings from the Pacific Northwest, and relax in their custom, leather, power-equipped seats. Their award-winning service and in-flight experience are designed to exceed your travel expectations.

Cascade Bicycle Club
Become a member