Trail Running calendar near West Seattle 2026-2027

We have found 91 Trailruns within 80 miles of West Seattle. See below where and when you can find the races.

A 100 mile endurance race through Washingtons Cascade Mountains centered in Easton, with forested and rugged trails and a long-standing volunteer and radio operator community. Finishers under 32 hours may qualify for a Western States lotter..

A roughly 3-mile obstacle trail run at Joint Base Lewis-McChord on 18 July 2026, with waves of 25 released every five minutes and entry capped at 1,500. Packet pick-up includes a shirt, medal, bib and a post-race beverage ticket.

A Tuesday Night Trail to Grill series run at St. Edward State Park featuring a 4.2 mile loop or an 8.6 mile double-loop on varied single track and wider trails, with an aid station offering drinks and snacks.

A one day community run and expo on July 22, 2026 in Seattle featuring group runs, an expo with brand booths, and a raffle. The event highlights local races, run clubs, running stores, and vending partners.

A mountain trail event near Greenwater, WA on July 25, 2026 offering 50 Mile, 50K and 25K courses with significant elevation, technical single track and staffed aid stations. Camping is available at the Ranger Creek Campground.

August 2026

Two days of mountain running on Mount Ellinor near Hoodsport, Washington, with a 24 km Skyrace featuring 1,600 m of ascent and a 10 km Forest Loop. The event is North America’s stop on the Skyrunner World Series and part of the USA series.

A loaded trail event at Esmeralda Trailhead in Cle Elum, Washington on August 1, 2026. Two options: a 13 mile route with 4,406 ft elevation gain and a 9 mile mini with 2,831 ft, each requiring a 20 lb dry load.

Stair races and walks at Stadium Bowl in Tacoma with one lap and two lap options, a Heroes Race with weighted vests, and proceeds supporting Kindred Souls Foundation. Open to participants aged eight and up with guardian supervision for mino..

Trail races of 5k, 14.5 miles and 26.2 miles take place in King County's Cougar Mountain Regional Wildland Park near Seattle. The event includes aid stations on course, supports King County Parks, and participates in a youth trail series.

A road race on Whidbey Island through Ebey’s National Historical Reserve offering 5K, 10K and a half marathon on hilly, scenic roads. Proceeds support safe and sober graduation activities for Coupeville High School Class of 2027.

A fast, scenic marathon and half marathon through the Snoqualmie Tunnel area on August 9, 2026. The USATF certified marathon is a Boston qualifier and the route features about 1000 feet of net downhill.

A timed loop endurance event at Lincoln Park in Seattle on August 15, 2026 offering 3, 6, 12 and 18 hour formats plus kids races, team competition, cupless aid stations, food options and awards by total mileage.

A multi-distance trail race festival in the Olympic National Forest near Quilcene, WA offering 100K, 50K, 25K, 10K and ruck divisions with significant elevation, mostly single-track courses, staffed aid stations and on-site camping.

An evening running event at Chambers Bay in University Place, Washington offering 5k, 10k and half marathon distances on a paved loop with varied terrain, aid stations, race-day packet pick-up, and event swag.

A 5K around Lake Padden in Bellingham on August 16, 2026, organized by Happy Tails Happy Homes to support animals in need. The route circles the lake on grass and trails with wooded sections and a few short hills.

A team relay at Crystal Mountain on August 21-22, 2026 featuring three alpine trail loops, a mid-race gondola ride, and views of Mt. Rainier. Multiple team formats are offered, plus on-site camping and glamping at Ragnar Village.

A point-to-point Cascade trail race with 50K and 50M options through forest, alpine meadows, and ridgeline terrain, topping out at Thorp Mountain Lookout and finishing at Salmon La Sac SnoPark.

September 2026

A multi-distance trail weekend in early September 2026 through the Dark Divide Roadless Area in the Washington Cascades, featuring a 100 Mile race with a 48 hour cutoff, a new point to point 100K, a 50K and a 14 Mile Fun Run.

A multi-day ultrarunning festival at a private farm near Bonney Lake, WA, using 5K loop laps with a central Race HQ and free adjacent camping. Events range from 6-hour and 24-hour timed formats to 50K up to a 200 Mile race.

Trail races on September 12 and 13, 2026 at Goldstream Provincial Park in Victoria BC, offering 28 km, 50 km, 50 mile and a Double. Courses use single and double track, include old growth forest sections, significant elevation and multiple..

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