Trail Running calendar near Downtown Seattle 2026-2027

Trail run at Redmond Watershed Preserve offering 5 mile and half marathon options on mostly wide, smooth trails. The half marathon repeats a 6.55 mile loop and includes two aid stations; a Winter Wonderland costume contest is part of the ev..

Pigtails Run in Maple Valley, WA offers several distances on a river-and-woods course and marks the race's 20th year. The event is organized as a low cost, low support race with limited aid and a strict safety cutoff.

A roughly 10 km trail run through Squaxin Park in Olympia on December 12, 2026. Start and finish at Reeves Middle School with a holiday aid station, finisher medal and a tree planted for each finisher.

A forested loop at Seward Park offers 4.2 mile and 10k trail options as part of the Winter Trail Series, with an aid station near the start finish and a themed costume contest.

A time based trail event at Fort Steilacoom Park offering 3 hour, 6 hour, and 8 hour options on a 5 mile loop with 520 feet of gain and on course aid and lap recording.

Trail runs at St. Edward State Park offering 4 mile or 8 mile looped courses along singletrack and shoreline. It is the fifth event in the 2026/27 Winter Trail Series and includes an aid station and parking options.

Trail runs of 5 mile and Half Marathon at Soaring Eagle Regional Park in Sammamish, WA. Courses use technical singletrack and a Pipeline Trail section with aid stations and rolling short hills.

Interlaken Icicle Dash features 5k and 10k trail loops through Seattle's wooded Interlaken Park as the final event of the 2026-27 Winter Trail Series, with on-course aid and street parking near 21st Ave E and E Interlaken Blvd.

Woolley Trail Runs offers three out and back races along the Cascade Trail near Sedro Woolley WA. Courses run on railroad grade gravel with limited aid stations and several road crossings where runners must watch for traffic.

A 100 mile looped trail race on Orcas Island that uses four 25 mile loops, 15 aid stations and about 26,000 feet of ascent. Variable winter weather and required ferry travel are key logistical factors.

A 25K point-to-point trail race in the Chuckanut Mountains near Bellingham, WA, organized by Yeti Trail Runners, featuring singletrack through old-growth forest, ridgeline views, chip timing, and a finish at Larrabee State Park Amphitheater..

Timed loop race at Green Lake Park in Seattle offering 12 hour and 5 hour options. Runners complete repeated 3.2 mile laps counter clockwise on a groomed dirt path, and the competitor with the most laps in the time wins.

Trail races at Royal Roads University in Victoria BC offer three distances on single-track campus trails, one aid station on the long route, a cupless policy, on-site parking, post-race food and prize draws.

The Deception Pass Half Marathon will take place in West Point on Saturday 3 April 2027. You can run between 10 and 19 miles.

Trail races on the Olympic Adventure Trail near Port Angeles offering a 12K, half marathon, and 50K on single-track routes with mandatory shuttles, aid stations, chip timing, and an after-party including a hot meal and beer garden.

Obstacle course races take place May 1 and 2, 2027 at Meadow Wood Equestrian Center in Snohomish, WA. Events include a 5 km with 20 obstacles, a 10 km with 25 obstacles, and kids races on wooded trails.

The Trillium Trail Run will take place in Bainbridge Island on Saturday 8 May 2027. You can run between 5 and 10 kilometers.

A trail race weekend in Leavenworth on May 29, 2027 featuring a 50k, 25k, Town 5k and kids race, with mountain ridge courses, multiple aid stations, finisher options and a base area festival with food and music.

A paved out-and-back on the Foothills Trail in Puyallup, WA on May 29, 2027 offering *50 miles* and *50K* distances, multiple aid stations and a 15 hour cutoff.

Timed loop races on a 1.54 mile scenic loop in Magnuson Park offering 7-hour and 13-hour solo events with chip lap counting, a stocked aid station, race t-shirt and a boxed vegetarian post race meal.