March 11th, 2020: The Governor of Washington State made an announcement prohibiting gatherings of 250 people or more for events including social and sporting events in King, Pierce and Snohomish counties. The restriction will remain in effect until March 31, 2020 unless extended beyond that date. We are continuing our planning for the event so we can give you the best marathon experience possible on June 14th, 2020. Please bear with us at this time. Thank you and Thank you for Running Tunnel Marathons!

Registration is Open ~ The Second Fastest Boston-Qualifying Course

Course Records: Male 2015 Kory Cool 2:29:39, Female 2018 DarbKai Standrick 2:44:22

Come run a marathon with the Tunnel Marathons team and enjoy a 5-star marathon experience. Whether your first or 100th marathon, we care about our runners, we care about helping you set a new personal record, and we care about sending you to the Boston Marathon. In 2019 over 590 people (40%!!!) qualified for Boston on this course. Join them!

North Bend, Washington State

2020 Season Race Dates

Light at the End of the Tunnel Marathon (June 14, 2020 - 7 AM) Tunnel Vision (August 16, 2020 - 7 AM) Tunnel Light (September 20,2020 - 8 AM)

Race Reviews

Gorgeous trail with great mountain views. Awesome volunteers and yummy food. Loved the ice bath afterwards awwww. Highly recommended especially if you want to PR or downhill coarse.

Trish Laliberte

I beat my last marathon by 20 MIN! This truly is a great course for a PR and a BQ attempt.


Amazing race. Beautiful course with awesome volunteers. I got a pr and a BQ.

Edward Guelfi

Beautiful run and wonderful experience even running in the rain! would definitely do again!

Rocky Christenberry

Just ran my first Tunnel Marathon and had a fabulous experience (plus a 20 min PR and a BQ!). Well organized, great route. Loved the finish line! Loved the cold water tank and the massages!

Helen Mills

USATF Course Certification # WA18020RMB