Washington
Washington Trail Running Calendar 2026-2027
Explore the best trail runs in Washington for 2026-2027! Our updated list features 149 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
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 in Capitol Forest on October 31 featuring marked 25K, 14K and 4K courses; costumes are encouraged and pumpkin pie prizes are awarded.
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.
Cross-country meet at Lincoln Park in Seattle with 6K, 8K and 10K races; team and individual entry options and a $15 registration fee.
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.
A community 5 K at the Garfield County Fairgrounds in Pomeroy WA on November 14, 2026 featuring a flat mixed surface loop and support at the halfway point.
A community 5K in Tacoma on 11/15/2026 that honors veterans and partners with Project Recover to raise awareness about missing service members.
Trail races on Squak Mountain offering 7, 14 and 21 mile courses through evergreen forest with aid stations, a long sleeve race T shirt, a finisher medal, and posted results.
Trail races at Ravenna Park on November 21, 2026 with 4k, 8k and 12k options on a 4.1 km forest loop featuring moderate climbs and an aid station offering water and snacks.
Community 5K and 1 mile kids run on the Larry Scott Trail in Port Townsend supporting Jumping Mouse Children's Center and children's mental health.