Trail Running calendar near Sedro-Woolley 2026-2027

We have found 102 Trailruns within 80 miles of Sedro-Woolley. See below where and when you can find the races.

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.

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 course weekend near Monroe Washington featuring wooded trails and narrow paths with Sprint, Super, Beast and kids races. The program also includes an obstacle workshop a four hour Hurricane Heat and spectator access.

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.

Time-based track events in Duncan, BC offering 3, 6, 12 and 24 hour options plus team and virtual entries. The race supports the Victoria Hospitals Foundation and hosts the ACU 100 km Canadian Championship for ACU members.

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..

Trail races in Mount Seymour Provincial Park with several distances, routes around Goldie and Flower lakes, and a guided non competitive hiking division for walkers.

October 2026

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.

A 50K out and back at Baker Lake on October 3, 2026, starting from Kulshan Campground. The course follows paved and gravel approaches onto a 14 mile single track with lakeside forest, footbridges, and stream views.

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 technical single-track trail race on Sumas Mountain on October 10, 2026, offering 10 km, 20 km and 30 km loops, aid stations, finish food, podium prizes and a 30 km team challenge.

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.

A trail running event circling scenic Cultus Lake. The 22nd edition features a 30 km solo or relay race and a 1.5 km kids run. The race starts and finishes at Main Beach.

Trail races on North Shore terrain with marathon, half marathon and 10 km starting and finishing at Inter River Park. Aid stations, finisher medals, podium awards and costume prizes are part of the event.

A multiformat endurance event at Salt Creek Recreation Area with 12 hour and 24 hour loop options, a relay format, and a Last Runner Standing summit challenge offering coastal views and stocked aid stations.

A timed endurance event at Carkeek Park in Seattle offering 12 hour and 6 hour options on a looped course. The race supports the Endless Trails nonprofit, encourages Halloween costumes and awards prizes for costumed runners and pets.

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