Washington
Washington Trail Running Calendar 2026-2027
Explore the best trail runs in Washington for 2026-2027! Our updated list features 154 exciting trail runs across the region. Find your next trail run in Washington below and join the trail community at these great events!
March 2027
Experience the expansive views of the Columbia Basin at the Badger Mountain Challenge featuring seven trail races from 15 km to 100 miles in Richland Washington.
Test your endurance at Green Lake Park in Seattle with 5 hour and 12 hour timed races on a scenic 3.2 mile groomed dirt loop.
Enjoy a scenic spring race along Lacamas Lake and Camas Meadows Golf Course featuring distances from a 5K to a Half Marathon plus a festive petting zoo and post race mimosas.
April 2027
Trail half marathon, 10K and 19.3 miles double at Deception Pass State Park featuring technical single-track, coastal bluffs, multiple aid stations and course cutoffs.
A cloverleaf trail race in Quincy, WA featuring single track loops around desert lakes and the Columbia River Gorge, central aid support, required personal hydration, and options from 10K to 50 miles.
Trail races on the Olympic Adventure Trail near Port Angeles, Washington, offering point to point 12K and half marathon plus an out and back 50K on singletrack, limited fields, cupless hydration, shuttle service, and a post-race meal.
Six hour women’s timed trail event at Bennington Lake where participants run as many 5 mile loops as they wish with a short out and back option in the final hour.
A 50K trail race near Ellensburg WA with about 9,200 feet of climbing on rocky, exposed singletrack through the Yakima River Canyon, limited aid and primitive on site camping.
Trail races at Squak Mountain State Park near Issaquah, WA, on April 17, 2027, featuring 50K, half marathon, 12K options, a brunch run, and a kids race.
A 25K out and back trail race near Ellensburg, WA with 4,700 ft of elevation gain, technical single track, two aid stations, mandatory water carry, and primitive on-site camping.
Trail marathon, half marathon, and team relay from Mazama to Twisp on private, one-day-access terrain with varied trails and notable elevation change.
A volunteer-organized trail running event at Riverside State Park on April 25, 2027, offering distances from 5K to 50K, relays, and a two-person tag team. Proceeds support local youth programs and partner organizations.
May 2027
A two-day Spartan obstacle race weekend at Meadow Wood Equestrian Center near Snohomish, WA featuring a Sprint 5 km with 20 obstacles, Super 10 km with 25 obstacles, and kids races.
Trail races of 50M, 50K and 25K in Winthrop WA on mostly smooth mountain trails with a lakeside finish, shuttle starts and camping at Big Twin Lake.
Enjoy a 5K run through organic farmland and along the Nooksack River followed by local food and festivities at the EN Valley Farmers Market opening day.
A multi-route trail event on Tiger Mountain with three summit loops, offering a 50k option plus The Ascent, Big Cat, and The Ambush over a May weekend in Issaquah.
Scenic 10K, 5K and kids 1-mile runs from Battle Point Park along the Forest to Sky Trail on Bainbridge Island with proceeds supporting local trail development.
Trail races at Soaring Eagle Regional Park in Sammamish WA featuring a half marathon, 10K, 5K and kids race on mostly flat, rooty forest trails.
Leavenworth Trail Fest on May 29, 2027 includes a Town 5k, Skyline 25k and Ski Hill 50k two loop mountain race plus a family oriented festival and kids events.