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!
June 2027
Point to point USATF certified marathon and half on the Palouse to Cascades Trail with a sustained downhill profile, aid stations, shuttles, and live chip timing.
A single-day 100k relay or ultramarathon in Vancouver and Camas with teams of 1 to 7 across 15 segments and 14 exchanges, including parking passes and a post-race meal.
Trail ruck at Crystal Mountain with two routes, 6 or 12 miles, weight categories and time based awards.
Forest trail races at Carkeek Park in Seattle with 5k and 10k routes, varied terrain, an aid station at the meadow, post race food, and awards.
SISU 100 PNW is a self-supported 100 mile ultramarathon from Camp Sheppard where runners build their own route by completing six marked mountain trails.
Trail ultramarathon in Hyak, Washington with 50-mile, 100K and 100-mile out-and-back races on crushed limestone, including the 2.3-mile Snoqualmie tunnel.
A 24-hour choose-your-own-adventure trail event at Camp Sheppard with six routes, optional side quests for bonus points, and live leaderboard for solo or three-person teams.
July 2027
Evening trail loop through Seward Park's old growth forest with 4.2 mile and 10k options, aid station, post-run food, awards, and on-course snacks.
Trail races at Mission Ridge near Wenatchee with half, 50 mile, 100 mile and kid’s distances across rocky ridgelines, creek crossings, and multiple aid stations.
Multiple trail races in Cougar Mountain Regional Wildland Park near Seattle, offering 5k, 10.8 mile and 19.5 mile courses as part of a series supporting King County Parks.
Trail races at Crystal Mountain near Mount Rainier with a hill climb 5K, downhill 10K and 13.1 mile half; all registrations include an all day gondola pass.
A 100 mile endurance trail race in Washington's Cascade Mountains centered in Easton with a longstanding community of organizers, volunteers, and runners.
A July 20, 2027 trail run at St. Edward State Park offering 4 mile and 8 mile loop options on twisting single track with aid station, post-run food, and awards.
Three sequential 5K trail races in Puyallup with 45 minutes per 5K and 30 minutes to transfer, limited to 100 entrants; chip timing, shirt, medal, and RaceJoy required.
A mountain loop ultra at Mt. Spokane State Park offering 25 mile 50 mile and 100 mile options over technical singletrack with large elevation gains and seasonal huckleberries.
Family friendly mud run in Seattle with obstacles, mud pits, a post race party, tiered registration from value to VIP, and a Buy One & Give One donation program.
Mountain skyrace and 10 km forest loop on Mount Ellinor with steep ascent, aid stations, prize money, and cupless aid for sustainability.
Volunteer weekend near Cougar, WA to haul water into remote aid stations with about 9 mile hikes each day, camping options, and no participation fee.
August 2027
Remote Mt. St. Helens trail races featuring a full 50K circumnavigation and a 25K with volcanic terrain and technical sections.
Trail runs from Fairhaven Park through Larrabee State Park featuring forest trails, lakes, ridgelines, and distances of 12K, 25K, 50K, plus a free kids race.