Washington
Washington Trail Running Calendar 2026-2027
Explore the best trail runs in Washington for 2026-2027! Our updated list features 130 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
High elevation trail runs near Leavenworth with alpine ridgelines and golden larches, offering 50K and 50M courses on October 10, 2026.
A six hour trail running event on the Swauk Forest Discovery Trail near Blewett Pass on October 10, 2026. The 2.45 mile single track loop has about 650 ft of climbing and features a fall themed potluck aid station and a post race dinner option.
Trail races on the Middle Fork and CCC trails in North Bend, WA, on October 10, 2026. Distances from 10k to 50k feature river valley scenery, aid stations, and some unbridged creek crossings.
A 50k trail race in Riverside State Park near Spokane featuring 31 miles, about 3,100 ft of climbing, river and bridge views, rocky singletrack, and multiple crew access points.
Community run at PLU Meadows Disc Golf Course offering a 1K kids run and a 5K. Proceeds support local youth running programs and a college scholarship.
Where's Bigfoot 5k takes place in Seattle on October 17, 2026 with in person, virtual, and free untimed kid entries. The course is 3.1 miles and registration periods and fees vary by entry type.
Timed 3 hour and 6 hour loop trail event at Osprey Park in Sultan, WA on a 1.06 mi dirt single track with minimal elevation and an aid station.
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.
Timed trail event at Carkeek Park with 12 hour and 6 hour options, in-person Oct 24 and virtual Oct 1–31; limited field and proceeds support local trails.
Trail event at Chamna Natural Preserve in Richland offering a half marathon, 10K and 6K with mostly dirt trails and post-race awards.
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 Halloween-themed race day at Pacific Community Park featuring youth and community 2k–5k courses on grass and compact trail, with medals and holiday prizes.
An evening team relay in Ten Trails where teams of one to three hunt and return six hidden ghosts in Civic Park; free registration, prizes for fast finish, best team name, and best costume.
A 10K trail race in Port Gamble, WA with single-track and dirt roads, about 600 feet of climbing, a costume contest, and awards including masters categories.
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.
November 2026
Grand Ridge is the Evergreen season finale with 5-mile, half, marathon and 50K courses through forested Cascade foothills and cupless aid support.
A community fundraiser on the Klickitat Trail offering a half marathon and 5K along scenic canyon walls, with shuttle service, aid stations, and volunteer support.
Willapa Trail Festival in Chehalis WA offers flat gravel trail races from 5K to 100 miles on the Willapa Hills Trail with multiple aid stations and low entry fees.
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.