Trail Running calendar near West Seattle 2026-2027

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 in Roslyn, WA is a self supported trail ultramarathon with a 51.3 mile course and over 10,000 feet of climb. Entrants must navigate from GPX files, carry a satellite messenger, and validate completion with GPS data and summit sel..

A timed endurance event in Gig Harbor, WA on September 12, 2026 offering 24 hour, 12 hour day, 12 hour night and 6 hour options on a two mile loop with about 320 feet climb per lap.

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, net downhill marathon and half marathon on a smooth packed gravel rail trail near Snoqualmie Tunnel. The marathon is USATF certified and a Boston qualifier; headlamps are required for the tunnel section.

A timed stair-climb at T-Mobile Park with full and half routes, held September 16, 2026, that raises funds for the Cystic Fibrosis Foundation and includes age and fundraising requirements.

A Spartan obstacle race weekend near Monroe, Washington featuring Sprint, Super, Beast, kids races, a workshop, and a Hurricane Heat event across forested trails and narrow paths.

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.

A two day 70 mile trail relay at Moran State Park on Orcas Island, run over twelve legs by teams of two to six. The course moves through forests, lakeshores, wetlands and the 2,399 foot Mount Constitution summit.

Ultra Fest in Easton, WA offers distances from 25K to 100 mile across the Central Cascades, with day of registration and on site parking at the Easton Fire Station.

Trail ultraruns near Cle Elum WA through remote alpine terrain with large elevation gain. Options include 100 miles, 50 miles and 50 km; required safety gear, aid station cutoffs and a trail work or donation requirement apply.

A fantasy themed 5K walk and run at Magnuson Park with mixed trail surfaces, Villain Zones, and a Heroes Village; costumes encouraged and leashed dogs and strollers welcome.

Trail runs at Deception Pass State Park offering 5 mile, half marathon and full marathon courses that visit Rosario, Lighthouse and Lottie Points and cross the Deception Pass Bridge. Aid stations are on course and the event is cupless.

A two-day trail running festival in North Bend, Washington featuring a steep Mt Si VK, a 30K Skyline race with major elevation gain, a 10K on Little Si, festival activities, and charitable support for Recovery Beyond.

A last-person-standing backyard ultra on October 3rd, 2026 where a $100 bill is added to the prize jar each lap; the winner and runner-up split the accumulated pot 75/25 and 24 laps earns a 100-mile buckle.

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.

A six hour trail running event on the Swauk Forest Discovery Trail near Blewett Pass on October 10, 2026. The 2.45 mile single track loop has about 650 ft of climbing and features a fall themed potluck aid station and a post race dinner opt..

Trail races on the Middle Fork and CCC trails in North Bend, WA, on October 10, 2026. Distances from 10k to 50k feature river valley scenery, aid stations, and some unbridged creek crossings.