Tunnel Light Marathon
North Bend, United States • 13 Sep 2026
Event Details
The Tunnel Light Marathon & Half Marathon takes place on September 13, 2026. It is one of three event weekends offered by the organizer. The other two are the Light at the End of the Tunnel Marathon & Half on June 7, 2026, and the Tunnel Vision Marathon & Half on August 9, 2026.
The Course
The 2026 event will follow an alternate, fully permitted route due to previous storm damage. The course remains fast and scenic, featuring approximately 1,000 feet of net elevation drop for both distances. The surface is smooth, packed gravel, suitable for road or light trail shoes. The route is known for being a proven Boston Marathon qualifier. Both the marathon and half marathon will be USATF-certified.
A key feature of the race is the run through the historic, 2.3-mile-long Snoqualmie Tunnel. Headlamps are required inside the tunnel. The finish is at the Garcia Trailhead. From there, runners walk approximately one mile down a forest service road to shuttle buses, which return participants to the start area at Hyak Sno-Park for post-race activities.
Registration and Inclusions
Registration opens on February 13, 2026, and closes on September 6, 2026. The registration includes professional chip timing, a custom race bib, a finisher’s shirt and medal, post-race food, and shuttle transportation from the finish back to the start.
On-Site Support
Aid stations are located every 2–3 miles along the course. They provide water, electrolytes, first aid, and Honey Stinger energy gels at select locations. Visit the organization's website for the most recent information.