Tunnel Light Marathon
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The Tunnel Light Marathon race offers one of the fastest courses in the country. This point-to-point course delivers excellent times thanks to the consistent downhill grade and low starting elevation. It is the perfect race to set a Personal Record and snag a Boston Qualification on a single course.
You will start at Snoqualmie Pass and run through a dark tunnel lit by your best running mates, gawk at the mountains and waterfalls, take in the sweet Washington air, and let your legs take you to the finish in North Bend. The speed of the course comes from a loss of just over 2,000' of elevation at a consistent grade of approximately 2.2%.
Related Events
Did you know that this race is part of a series of runs? If you like this race you may want to run one of the following Tunnel Marathons events.
Trail
Run Pick of the Month - Portland Marathon
Run Rose City's signature premier running event with a marathon, half marathon, and 10K, happening October 5, 2025.
Enjoy a course with gorgeous views of Portland's waterfront, several bridge crossings, and a full tour of some of the city's most iconic landmarks!
Runners will score free race photos and highlight videos, event and sponsor swag - including race medals and event shirt, plus food and drinks at the Finish Line Festival, including a complimentary, Oregon-brewed beer (runners 21+ only).
Save 20% on your registration using code "RG20"
Click the button below to get all the details!
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