Tunnel Light Marathon and Half-Marathon
North Bend, Washington, United States
Sep 13, 2026 - Sunday
Half-marathon, Marathon
Race Information
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%.
👍 Run Pick of the Month - Snohomish Women's Run
📍 Everett, WA - May 9, 2026
An empowering, inclusive, and unforgettable Pacific Northwest race!
💸 SAVE 10% On Your Entry. Use Code RG10
Spring Combo: 💸 SAVE 15% when you also register for Tenacious 10
😄 Why We Like This Run
✅ A women-centered run welcoming all genders and abilities.
✅ Fast and flat courses with aid stations and pace leaders for the half-marathon.
✅ Long-sleeve tech hoodie for every runner and supporting local charities.
Run along the scenic Snohomish River in Washington on flat, fast, and well-supported 5K, 10K, or Half Marathon courses, perfect for personal bests or a motivating day on the run.
Take part in this celebration of strength, community, and movement!
🏃 Training for This Race?
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Race Facts
Race Size: 500 - 1,000
Elevation: Downhill
Course Type: Trail
Boston Qualifier: Yes
Kids Run: No
Where to Stay
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