Trail Running calendar near Sedro-Woolley 2026-2027

We have found 82 Trailruns within 80 miles of Sedro-Woolley. See below where and when you can find the races.

Trail out and back on the Sammamish River Trail from Bothell Landing offering a half marathon, a full marathon and a 50K. Water and snacks are available and finishers receive a wooden medal.

Trail trail race around Soaring Eagle Park in Sammamish on July 4, 2026 with distances from 5 to 25 miles plus a virtual 25 mile option. Aid stations every 2.5 miles, commemorative shirts and medals, food and a chance to win baseball ticket..

Experience a scenic 10 km trail run through the rolling forest paths of Grant Hill in Maple Ridge. This timed event features a beautiful natural course and rewards all finishers with a collectible medal.

A forested loop at Seward Park on a Lake Washington peninsula offering 4.2 mile and 10k trail options, on-course aid stations, and park-side parking near the start. Part of the Tuesday Night Trail to Grill Series.

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.

A 30 mile trail race along the Baden-Powell Centennial Trail between Horseshoe Bay and Deep Cove, featuring about 8,000 feet of climbing and a field chosen by random selection.

A checkpoint-style trail race of 10 to 15 km through Vancouver trails and landmarks, held in the morning. The event includes coffee, food, DJs and prizes; tickets are limited and refunds are not available.

Monthly trail races at Cougar Mountain offer a range of distances across a summer series and an October autumn event. The events raise funds for King County Parks and include USATF championship and youth races in August.

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.

A trail run at St. Edward State Park on July 21, 2026 offering 4 mile and 8 mile loop options on mixed single track and wider trails. The event is part of a summer series and includes an aid station, post run food, and awards.

A one-day community trail running festival in Seattle featuring social group runs in two route lengths, an expo with running brands and vendors, food and a raffle, and a cupless policy with no dogs except service animals.

Mountain trail races at Mount Seymour Resort offering 35 km, 50 km and a 50 km two person relay across technical North Shore trails with significant elevation gain. A non timed 1 km kids run is also included.

August 2026

Timed endurance events of 6, 12, 24 and 32 hour around a marked 2.6 mile wooded loop at Lake Padden, with night lighting, aid stations, keepsakes and awards; limited field and proceeds supporting a local youth program.

Trail runs of 12K, 25K and 50K start at Fairhaven Park and loop through Larrabee State Park, featuring lakes, narrow ridgelines and views of Mt. Baker and Bellingham Bay. Courses include technical, rocky sections with multiple aid stations.

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.

Tunnel Vision Marathon and Half on August 9, 2026 in North Bend WA follows a USATF certified, mostly downhill route with about 1,000 feet net drop and a passage through the Snoqualmie Tunnel. The event includes chip timing, aid stations, an..

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.

Trail races at Cobble Hill Mountain offering long, short and kids distances with aid stations and a cupless policy. Bib pickup requires government photo ID and parking is only in designated nearby areas.

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.

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