Seattle to Portland Bicycle Classic presented by Alaska Airlines

Event Description

The Seattle to Portland Bicycle Classic is a Pacific Northwest rite of passage! Join STP in its 47th year and ride from one great bike city to another. Bicycling Magazine calls STP "one of the best cycling events in the nation" because this ride is a treat for all ages, abilities, and anyone up to the challenge. 

Heading south from Seattle and ending in Portland, Oregon, STP is a thrilling back-to-back double-century ride through beautiful Western Washington. Everyone belongs on STP -- bike 207 miles over one or two days, one mile at a time.

This event is a fundraiser for Cascade Bicycle Club's programming in advocacy, education, and community rides, such as our sliding scale biking and maintenance classes and the Pedaling Relief Project.

Pricing

STP 5-Pack FAQ

Registration

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Registration opens on January 8, 2026 at 10 a.m.

Your registration fee covers your entry, access to rest stops, ride support, baggage truck service, a meal at the finish line, and an STP finisher souvenir. Registration closes Sunday, July 5, 2026 at 11:59 p.m.

Parking, bus passes, and bike transport are sold as add-ons, which can be purchased when you check out or added later in your account dashboard. Early start line bag & bike drop are purchased on location on the Friday before STP. Lodging arrangements are made directly with hosts.

Packet Mailing & Pickup

USPS Priority Mail Packet add-ons have shipped! If you purchased the Priority Mail add-on, you should have received an email from PirateShip on behalf of Cascade Bicycle Club, with the subject line "Your shipment is on its way!" This email contains your USPS tracking number. If you still have not received your packet, a replacement can be obtained at any of the packet pickup events below.

All other registrants will pick up their rider packets during our packet pickup events in the two weeks leading up to STP. Your packet will be available for pickup at the following locations:

Your rider packet includes your numbered bib, parking passes, meal ticket, baggage tags, twist ties, and more!

Please see us at the green Cascade tents at the start line if you have lost your packet.

Communications

Catch up on the latest STP Digests here below:

Route

The route is 207 miles long. 

We encourage you to wait until the day before the event to download these maps to your preferred device for easy access on the day of the event. 

Click through to see the full map on Ride With GPS.

Printed cue sheets are available at the start line tents. The route is marked with navigational markings on the road surface.

Click here for more route information

Schedule

Transportation

Pre-Ride Bus

For riders in the Portland area, the Portland Bicycling Club arranges buses to deliver you and trucks to deliver your bike to Seattle on Friday, July 10. Pair that with a UW dorm and it's the easiest way for you and your bike to get to the start line. Please see PBC's website for more information. These can be purchased as add-ons when you register. We are expanding capacity so more Portland riders can participate in 2026 -- watch this space for limits. 

Post-Ride Bus

Transportation from Portland to Seattle for you and your bike from the finish line can be purchased as add-ons to your registration. Buses are available on Saturday, Sunday, and Monday to return you to to the University of Washington in Seattle. You can also purchase separate truck transportation for your bike. If you are returning home by air or train, purchase delivery of your bike box to the finish line.

Click here for more transportation information

Inclusion

Everyone is welcome at Cascade events. We are committed to celebrating and promoting diversity in the bicycling community. We aim to provide safe spaces at start lines, finish lines, and official rest stops. Read our commitment to anti-racism and our participant code of conduct and grievance policy.

We would like to acknowledge that our rides take place on native land. Our offices are located on the traditional land of the first people of Seattle, the Duwamish People past and present.

Food & Breaks

Tailwind is on Course

We are happy to announce Tailwind Nutrition as the official liquid nutrition partner of STP! Tailwind Endurance Fuel keeps you going and feeling great throughout your rides and adventures. We will have Tailwind Endurance Fuel on course at all of the rest stops. 

Endurance Fuel satisfies your caloric, electrolyte, and hydration needs. It is designed to be incredibly easy on the digestive system. Tailwind Endurance Fuel is vegan, gluten-free, and non-gmo.

If you have questions about using Tailwind, check out their recommendations and FAQ’s on How to Tailwind or reach out to Tailwind at supportcrew@tailwindnutrition.com. 

Rest Stops

Five official rest stops are located at miles 20, 55, 147, and 177. A full selection of snacks, fruit, and PB&Js are available to riders.

Additionally, one-day riders will have a lunch stop on Saturday.

Thirteen official mini-stops are located throughout the course.

Many unofficial rest stops pop up along the route and you are welcome to enjoy them. 

Where to Stay

You must arrange for your own lodging at the start line, mid-point areas, and at the finish line as needed.

The University of Washington offers dorm rooms on Friday night near the start line.

Are you a two-day rider looking for mid-point lodging?  Lodging will be available through Centralia College, the Centralia-Chehalis Chamber of Commerce, and other community organizations between the 100- and 150-mile marks. Lodging ranges from private rooms to tent and RV camping.

DoubleTree and Hyatt Regency offer promotions for STP riders adjacent to the finish line in Portland.

Click here for more lodging information.

Support During the Ride

This ride is supported by Cascade staff and volunteers, local community group volunteers, and municipal and county services. 

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Support and gear (SAG) vehicles are present on the route and dispatched when you call the ride support hotline. SAG vehicles can transport you and most models of bikes in the event of a mechanical or minor medical event. You will be taken to the next rest stop or the start/finish line, whichever is closest. Once safely arrived at the next stop, it is your responsibility to make arrangements for a friend or family member to retrieve you and your bike. You should always call 911 in a life-threatening emergency.

Outriders are volunteers in white, green, and black jerseys that ride on the route, assisting you with minor mechanical and minor medical issues, like cuts and scrapes, dispensing advice and directions, and helping you to Ride S.M.A.R.T. 

Medical riders are volunteers on bike in red and blue jerseys that can assist you with minor medical issues like cuts and scrapes, dehydration, sprained joints, and other non-life threatening issues. 

Mechanics are posted at the start line and at most official rest stops.

Traffic officers are posted at highway crossings. Traffic officers will direct riders in large groups across the Longview Bridge into Oregon on Sunday only, between 8 a.m. and 2:30 p.m.

We ask that personal support vehicles please stay off of the STP route. Riders should plan to meet with personal support vehicles away from the route to prevent unsafe interactions with rider traffic.

Weather

July weather can bring many things: rain, extreme heat, and lots of sun. Morning temperatures may vary drastically from midday temperatures. Wear or bring layers to have available on your bike with you,

Get your bike tuned up and in shape to ride in slick, rainy, low-visibility conditions. Bring front and rear lights, backup batteries, install fenders, service your brakes, and clean your chain.

Training

The Cascade Training Series is a twelve-week ride series designed to prepare you for STP. Riders of all paces will not only building their strength and endurance, but also their confidence.

To help you prepare for this ride, you can also check out our extensive schedule of Free Group Rides in the Puget Sound area. Find rides that fit your schedule and desired pace and distance. 

Training on your own? Use this handy Google Sheet to plan your rides and track your progress.

Click here for more training information

Packing List

Read the recommended packing list and get ready.

Hall of Fame

Have you completed the Seattle to Portland Bicycle Classic five or more times? You can join the STP Hall of Fame! Hang tight -- we'll have a new form for you to fill out to get onto the list or to update your listing.

Thank You To Our Sponsors

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Interested in becoming a sponsor? Contact our Sponsorship team: sponsorship@cascade.org.