Tunnel Vision Marathon

North Bend, United States • 9 Aug 2026

Event overview

The Tunnel Vision Marathon & Half Marathon takes place on August 9, 2026, between Snoqualmie Pass (Hyak) and North Bend, Washington. Distances offered:

  • Marathon
  • Half Marathon

Registration opens January 1, 2026. The marathon course is USATF certified (WA21010RMB). Reported course records are 2:25:01 (male, 2024) and 2:42:46 (female, 2022). The event has a high rate of Boston Marathon qualifiers, with reports of around 40% qualifying in 2019 and over 42% on the original Tunnel course.

Course details

The course is point-to-point and net downhill. The marathon loses just over 2,000 ft of elevation at an approximate average grade of 2.2%. The marathon route passes through the Snoqualmie Tunnel; the half marathon begins at the halfway point of the full course and does not pass through the tunnel. The half marathon has an 1100 ft net drop from start to finish.

Both courses use former railroad trails - the Palouse to Cascade Trail and the Snoqualmie Valley Trail - with packed gravel surfaces. Both trail and road running shoes are suitable for the course. Visit the organization's website for the most recent information.

Race information

Marathon
Marathon
Half Marathon
Half Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

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Take on the Race to the Top of Mount Si on January 3, 2026, a steep 3.7 mile trail climb with 4,167 feet of vertical gain to the Rock Garden. Enjoy aid stations, a finisher shirt and medal, and fierce competition for the Golden Si award.

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Tackle technical singletrack and rolling hills at the Frost Eagle Trail Run in Soaring Eagle Park on January 17. Pick a 5 mile or half marathon figure eight course with frequent aid stations and a lively winter trail vibe.