Tunnel Light Marathon
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Tunnel Light Marathon and Half Marathon
The Tunnel Light Marathon and Tunnel Light Half Marathon are scheduled for September 13, 2026 in the Snoqualmie Pass and North Bend area of Washington State. The event offers both marathon and half marathon options.
- Marathon
- Tunnel Light Half Marathon
The course is point to point with a net elevation loss of just over 2,000 feet and an average grade of approximately 2.2%. The route begins near Snoqualmie Pass, passes through a dark tunnel, and finishes in North Bend. The course is USATF Boston Certified (WA21010RMB). The organizer reports that the original Tunnel course produced Boston qualifying times for over 42% of participants.
Organizers have paused registration while they work with permitting agencies to develop an alternate route. Recent storm damage affected multiple sections of the Palouse to Cascade Trail, and Washington State Parks will not permit events on that trail for 2026. State Parks has not confirmed whether alternate courses will be allowed. Registration is tentatively scheduled to reopen on February 1, 2026 pending approvals. Visit the organization's website for the most recent information.
