Trail Running calendar near King County 2026-2027

The Dark Divide Trail Races offer technical distance options through the Gifford-Pinchot National Forest in Washington. Runners navigate alpine ridges and old-growth forests with views of glaciated volcanoes and on-site camping.

A multi-day ultrarunning festival at a private farm near Bonney Lake, WA, built around a looped 3.1 mile course with a single central aid station and free camping. Events range from 6 hours to a 200 mile race with centralized crew access.

Point to point trail race on the Olympic Adventure Trail finishing at Lake Crescent. Offers half marathon, marathon and 50K distances with mandatory shuttles, cupless aid stations, and a lakeside finish at Log Cabin Resort.

A point to point marathon and half marathon on the Palouse to Cascades Trail in North Bend, WA, featuring downhill profiles, a Snoqualmie Tunnel section, lake views, USATF certification and timed race services.

Beat The Blerch in Carnation, WA offers 5K, 10K, half and full marathon distances on a flat out and back gravel trail through mossy evergreen forest, with stocked aid stations including Nutella sandwiches and birthday cake.

Coal Miner is a self-supported trail event near Roslyn, WA featuring a 51.3-mile route with over 10,000 feet of climb across several ridges and summits. Participants must use provided GPX tracks and carry a satellite messenger.

A timed trail event near Gig Harbor with 24 hour, 12 hour day, 12 hour night and 6 hour options on a two mile loop featuring about 320 feet of climb per lap. Aid station, drop bags, limited canopy space and awards provided.

Fourth annual 5K at Illahee Preserve in Bremerton held during National Recovery Month. Proceeds support the Salish Recovery Coalition and participants receive event swag, a custom finisher medallion, coffee and donuts.

A fast, scenic marathon and half marathon through the Snoqualmie Tunnel near Hyak at Snoqualmie Pass. The marathon is USATF certified and a Boston qualifier, with about 1,000 feet of net downhill on packed gravel.

A timed stair-climb at T-Mobile Park where participants tackle either 900 or 1,800 stairs to raise funds for the Cystic Fibrosis Foundation. Climbers start in waves by self-identified pace and join an official after party.

A Spartan obstacle race weekend near Monroe, Washington, set on wooded trails between Puget Sound and the Cascades. Events include Sprint 5 km 20 obstacles, Super 10 km 25 obstacles, Beast 21 km 30 obstacles, kids races, workshops and a 4 h..

Cirque Series at Crystal Mountain is a 7.9 mile trail race with 2,614 feet of vertical gain on September 19, 2026. Sport, Expert and Pro divisions offer prizes and series points, and timing is by disposable bib chip.

Self supported ultraruns on remote USFS trails near Leavenworth WA, offered as the Plain 100K and the Plain 100 Miler. The route covers about 21,000 feet of elevation gain and includes one resupply after the first 100K.

Ultra Fest in Easton, Washington offers 100 mile, 100k, 50 mile, 50k and 25k races on a mostly flat gravel Foothills Trail with lakeside and mountain scenery. The event provides on-site parking, crew access, stocked aid stations, and distan..

A remote mountain ultrarace near Cle Elum, WA on September 19 and 20, 2026 offering *100M*, *50M*, and *50K* courses with large elevation gain, remote aid stations and required safety gear. The 100 mile entry includes qualifying and trail w..

A 5K themed walk or run at Magnuson Park with Villain Zones and a Heroes Village, featuring mixed gravel and trail sections, mild inclines, and welcome leashed dogs and suitable strollers; costumes are encouraged.

Coastal trail races in Anacortes offering marathon, half marathon, 5 mile and kids races on looped courses with ocean views and a crossing of the Deception Pass Bridge. The organizer does not issue refunds; transfer and deferral options app..

A two day mountain running event and outdoor festival in North Bend, Washington featuring a 30k Skyline championship, a Mt Si vertical kilometer and a Little Si 10k, with awards, finishers medals and local outdoor exhibits.

Baker Lake Classic 25k on Sunday October 4, 2026 is a 25k event organized by NW Endurance Events. Registration closes October 3 and the entry fee is $80 with a race shirt offered for $25.

The North Bend Skyline 30K will take place in North Bend on Monday 5 October 2026.