Washington
Washington Trail Running Calendar 2026-2027
Explore the best trail runs in Washington for 2026-2027! Our updated list features 147 exciting trail runs across the region. Find your next trail run in Washington below and join the trail community at these great events!
October 2026
Experience the beauty of the Olympic Peninsula at Salt Creek 24. Choose between 12 or 24 hour solo runs, relay teams, or a Last Runner Standing trail challenge overlooking the Strait of Juan de Fuca.
A 20th annual trail fundraiser at Carkeek Park offering 6 and 12 hour loop races on a 1.93 mile course with steep stairs and Puget Sound views.
Trail event at Chamna Natural Preserve on October 24, 2026 offering 6K, 10K and a half marathon with awards, snacks and costume-friendly fun.
A costumed community event at Lincoln Park featuring a trail 5K, kids dashes, and a virtual shirt option to support South Seattle College Cooperative Preschools. Registration includes a Monster Dash shirt and the 5K includes a timed bib.
An evening 5K glow run/walk through trails and around barns at Northern State Recreation Area, featuring spooky elements and trail hazards. Early registration and limited medals and goodie bags are available.
A community running event in Vancouver WA on October 24, 2026 offering youth 2k to 4k races plus an open 5k with medals and awards.
Beginner-friendly 2.8 mile group trail run at King County's Cougar Mountain with Teva demo shoes, post-run refreshments, and a chance to win Trailpeak shoes.
Free evening relay in Black Diamond where teams hunt six hidden ghosts in Civic Park, with costume and team-name awards and a bonus ghost prize.
A 10K trail race in Port Gamble, WA on October 31, 2026 with single-track and dirt roads, about 600 ft of climbing, a costume contest, and chip timing.
Trail races at Cougar Mountain Regional Wildland Park near Seattle offering 5k, 7.6 mile, 19.5 mile and 50k courses through forested single track, rolling hills and marshes. Proceeds support King County Parks.
Trail races of 25K, 14K and 4K in Capitol Forest near Olympia with marked courses, costume prizes, and post run food and fire.
November 2026
Final race of the Evergreen season at Grand Ridge Park, offering trail distances from 5 miles to 50K on looped forest courses.
Trail races in Klickitat including a point to point half marathon and a 5K, raising funds for the Klickitat School District and community center.
Weekend trail festival in Chehalis, WA offering 100 mile, 50 mile, 50K, 25K and a 5K the next day on a flat, packed gravel rail trail.
Trail running at Carkeek Park in Seattle with 5k and 10k forest courses featuring varied trail widths and rolling to steep sections. The 10k is two laps of the 5k and includes substantial climb.
Trail races at Deception Pass State Park on November 7 and 8, 2026 with 50K, 26.2M, 25K and a 1K kids run across coastal single track that crosses the pass twice.
A descending-clock loop in Lakewood where each round shortens by one minute and participants walk, ruck, run, or do hybrid rounds around a shared basecamp.
A fall running event in Spokane Valley on November 8, 2026, with 25K, 10K, 5K, a kids run and a virtual option, raising funds for EWU physical therapy students.
A descending-clock endurance event in Yakima where fixed-distance rounds shorten each time, with walk, run, ruck, hybrid, carry, and youth divisions.
A six hour loop race at Nolte State Park on a 1.4 mile crushed gravel and packed dirt course, fee waived with optional donations supporting the Washington Trail Association.