Trail Running calendar near Sammamish 2025-2026

The Return of the Salmon Celebration - Salmon Run is held in Sultan, Washington, at Osprey Park. This event features a scenic 5K trail run through the beautiful forest trails of Osprey Park and Susie's Trail, including multiple river crossings along the Sultan River. For those preferring a more leis..

The Fidalgo Trail Run is a scenic trail running event held in Deception Pass State Park, Washington's most-visited park. Starting and finishing at Bowman’s Bay, runners can choose from 5-mile, half marathon, and full marathon distances. The course features loops through forestlands, along the water,..

The Baker Lake 50k is a challenging trail ultramarathon held in a scenic fall setting at Baker Lake, Washington, within the Mt. Baker-Snoqualmie National Forest. The 31.2-mile out-and-back course starts and finishes at Kulshan Campground, offering free camping for participants.Runners traverse a sin..

The Baker Lake Classic 25k is a scenic 15.6-mile trail run held in the Mt. Baker-Snoqualmie National Forest in Washington. The course follows the eastern shoreline of Baker Lake, featuring old-growth forests with giant trees draped in lichen and moss, regrown Douglas firs after the 1843 Mt.Baker eru..

The Mad Meadows 50 is a challenging trail running event held near Leavenworth, Washington, featuring two distances: a 50-kilometer and a 50-mile race. Set in the scenic Eastern Cascades during October, the course offers a mix of smooth single track, steep climbs, and technical sections framed by gol..

The Orca Recovery Day 5K Trail Run is an annual event held at Clark's Creek Park South in Puyallup, Washington. This trail run/walk covers a 5-kilometer course that is mild to moderately challenging, offering participants a chance to enjoy nature while learning about orca conservation and salmon res..

The Golden 6 Hour is a scenic endurance running event held in Cle Elum, Washington, on a 2.45-mile single-track loop at Swauk Forest Discovery Trail near Blewett Pass. Set amidst vibrant fall colors and turning larches, the course offers mountain views and a festive autumn atmosphere. Participants r..

The North Bend Trail Fest, held in North Bend, Washington, is a dynamic mountain running event featuring multiple races over two days. Key highlights include the challenging North Bend Skyline 30k, a new course with 6,600 feet of vertical gain offering stunning views of the Cascades, Mount Rainier,..

The Middle Fork Trail Run, held in North Bend, Washington, offers trail races of 50k, 22 miles, half marathon, and 10k distances. Starting at the Middle Fork Trailhead, the courses traverse scenic trails including Middle Fork, CCC, and Snoqualmie Lake, featuring modest climbs along river valleys. Ru..

The North Bend Skyline 30K is a challenging trail running event held in the scenic Snoqualmie Valley, Washington. Part of the Vert Running Series Championship, it features a demanding course that tests runners' limits while offering stunning views of the valley and Cascade Mountains. The event takes..

Run With The Kokanee is a fall running event held at Lake Sammamish State Park in Issaquah, Washington. It features flat and fast 5k and 10k distances, with the 10k consisting of two loops of the 5k course. The route is about two-thirds paved sidewalks and paths, and one-third dirt or grassy trails,..

The Cougar Mountain Trail Run, held at King County’s Cougar Mountain Regional Wildland Park in Newcastle, Washington, offers a scenic trail running experience just 15 minutes from Seattle. The event features multiple race distances: 5k, 7.6 miles, 19.5 miles, and 50 kilometers, with elevation gains..

The Hyak Halloween 25K is a trail running event held at Snoqualmie Pass, Washington, on the ancestral lands of the Snoqualmie Tribe. The 25-kilometer course features a unique route that includes running through the 2.25-mile-long, historic, and eerie Snoqualmie Tunnel twice, just before it closes fo..

The West Seattle Monster Dash is an annual costumed 5K trail run/walk held at Lincoln Park in Seattle, WA. The 14th edition takes place in October 2025 and features a 5K Run/Walk, a Kids Monster Dash for children 12 and under, and a "Just a Shirt!" option. Participants receive a t-shirt with the ico..

The Carkeek 12-Hour is a challenging trail running event held annually at Carkeek Park in Seattle, Washington. Celebrating its 19th edition in 2025, the race offers both 12-hour and 6-hour options on a 1.93-mile loop course featuring 436 feet of elevation gain per lap, including rolling trails and s..

Salt Creek 24 is a unique 24-hour running event held at Salt Creek Recreation Area in Port Angeles, Washington, offering stunning views of the Strait of Juan de Fuca, lush evergreens, and historic World War II sites. Participants can choose from three options: a solo or relay 24-hour race on a 1.3-m..

The Grand Ridge Trail Run, held at Grand Ridge Regional Park in Issaquah, Washington, is the final race of the Evergreen Trail Runs season. It offers multiple distance options including 5-mile, half-marathon, full marathon, and 50K, catering to a wide range of runners. The course features two distin..

The Pigtails Run, celebrating its 20th year in 2025, is a low-key, self-supported "Fat Ass" style race held in Maple Valley, Washington. It offers distances of 50K, marathon, and half marathon along a mostly paved trail with some dirt and gravel sections, running alongside the Cedar River and throug..

Saturnalia is a winter trail running event held at Squaxin Park in Olympia, Washington. Featuring a 10K distance, it offers participants a festive holiday atmosphere amid the challenges of winter trails, darkness, and variable weather conditions. The event is designed as a fun celebration, inviting..

The Deception Pass 50K and 25K races take place at Deception Pass State Park in Oak Harbor, Washington, known for its rugged coastline, steep cliffs, dense forests, and stunning views. The courses traverse nearly the entire park, including two crossings of the historic Deception Pass Bridge, about 1..