Trail Running calendar near Downtown Seattle 2026-2027

Gulch Countdown is a Last Person Standing race on a scenic 2.18-mile forest loop. Runners complete loops against a decreasing cutoff time until only one remains. A portion of each entry supports the local trails.

Experience diverse trails and lush forests at Cougar Mountain Regional Wildland Park. Choose from three distances ranging from a 5k to 14.5 miles just minutes from Seattle.

Enjoy a free seven race summer series featuring a 5k trail course in Black Diamond. Run or walk bi weekly races to build community and compete for season end prizes in a supportive environment.

Experience an adventurous three day stage relay through North Central Washington for teams of eight. Navigate 225 miles of rugged trails and forest roads using old school maps in this unique low tech mountain running event.

Hotfoot 5K Trail Run in Port Orchard offers a mostly flat 5K and a 1 mile loop through South Kitsap Regional Park, with proceeds supporting a community scholarship and the public Fourth of July fireworks.

Experience the forest trails of Carkeek Park in Seattle with 5k and 10k options featuring rolling hills and post-run festivities. Enjoy a community atmosphere with refreshments and awards in a beautiful wooded setting.

A multi-distance trail event at Hyak on the Palouse to Cascades Trail featuring a new 200K, a 2.3-mile tunnel section, crushed limestone surface, and cut-offs of 30 hours for most races and 35 hours for the 200K.

SISU 24 Ultra PNW is a 24-hour or 100-mile adventure run at Camp Sheppard near Mount Rainier. Choose your challenge: run solo, with a team, or tackle the 100-mile route. Earn points by completing trail quests and optional side activities in..

A trail running event on June 27, 2026 near Issaquah, WA offering 5 Mile, Half marathon and 50K courses that climb two of Tiger Mountain's peaks. The race features multiple aid stations, cupless racing, and a free half mile kids race.

The Needles 50k is a self-supported, unmarked mountain ultramarathon loop near Easton, WA, with 10,000 feet of climbing. Runners must navigate using a provided GPX file and carry all their own supplies, treating water from creeks. A 50-mile..

Test your endurance at Crystal Mountain Resort by tackling mountain trails with a 20 pound pack. Choose from three distances ranging from 6.5 to 18.5 miles in the scenic Mount Rainier National Park region.

A day of road trail racing on the Sammamish River Trail offering a half marathon, marathon and 50K out and back from Bothell Landing Park. The route passes Wilmot Gateway Park and turns at Dr Call's Bench.

Run through an old growth forest on the Lake Washington peninsula at Seward Park. This Tuesday evening event features technical trail loops, a post race grill, and distances of 4.2 miles and 10 km.

Experience the lush forests and rolling hills of Cougar Mountain Regional Wildland Park at this trail event near Seattle. Choose between 5k, 10.8 mile, and 19.5 mile distances on varied terrain ranging from technical to groomed trails.

Mud Mountain Trail Fest on July 11, 2026 in Enumclaw WA offers a 4 Miler and a 10K on forested trails near Mud Mountain Dam. Participants receive chip timing, a commemorative bib and a finisher medal.

A 5K trail run and walk on Tiger Mountain with an out and back route over unpaved roads and a short cross country section. The event is clothing optional and is sponsored by Tiger Mountain Family Nudist Park.

Experience the mountain scenery of Washington with a half marathon, 10K, or 5K hill climb. Enjoy multi race challenges and a scenic gondola pass at Crystal Mountain Resort while exploring the terrain near Mount Rainier.

A 100 mile trail race in Easton, WA with about 23,000 feet of climb, roughly 32 miles on the Pacific Crest Trail, and a 2.3 mile passage through the Snoqualmie Tunnel. Entry was by lottery with results posted January 21, 2026.

Experience the lush forests and historic grounds of St. Edward State Park at this summer trail run. Choose between a 4 or 8 mile loop followed by a social grill out with hot dogs and watermelon.

Dirt Circus Seattle is a free community festival celebrating the local trail running scene. It features a social group run, followed by food, an expo, and a raffle with prizes. The event is held at Seven Hills Running Shop, connecting runne..