Trail Running calendar near Downtown Seattle 2026-2027

A coastal route from Magnolia along the Elliot Bay Trail and Alaskan Way into West Seattle, ending near Lincoln Park. Half marathon and marathon have specific unmarked turnaround points that rely on mileage or street signs.

Join the Trio Trail Run February at Frontier Park in Graham on Feb 8, 2026 for a relaxed, laid back trail morning. Choose 2.5 km or a two loop 5 km course, with pre registration discounts for youth and day of race sign up available.

Run rolling trails through forested kettle terrain with bluff top views of the Strait of Juan de Fuca at Fort Ebey State Park on Whidbey Island. Options from 5 km to marathon with a finisher medal included.

Lake Sylvia State Park hosts a trail race offering 25K and 50K loop courses over single and double track, gravel, and short paved sections. Winter trails can be rough and muddy; aid stations are on course and the 50K repeats the loop.

The Woolley Trail Runs offer a 50k, marathon, and half marathon on an out-and-back gravel path in Sedro Woolley. The event features limited aid stations and emphasizes self-support, with an early start option for slower runners. It is not a..

Celebrate Valentine's Day at the inaugural Song Sparrow Bridge run in Sedro Woolley with 10K and 4 Mile routes over new trails and two handcrafted bridges. Free entry, mass start, run at your own pace with muffins and Starbucks drinks.

Celebrate Valentine's Day with the Ten Trails Active Club Heartfelt Hustle, a free 5K community run in Black Diamond on Feb 14. Team entries, costumes, hand timed results and post race snacks make it a festive and friendly outing.

Trail races at Lord Hill Regional Park in Snohomish on February 21, 2026 include 5K, 10M, 20M, 50K, brunch runs and a kids race on marked, rocky and muddy single-track trails with aid stations and shuttle-supported parking.

Take in beach and island views while racing the second annual Rock Solid Marathon or Half Marathon in Coupeville, WA. All finishers get a custom shirt and medal and proceeds benefit The Rock Solid Foundation.

Event Overview The Lost Lake 25K is a trail running event in the Chuckanut Mountains near Bellingham, Washington. The course is a point-to-point route, starting at the Lost Lake Trailhead and finishing at the Larrabee State Park Amphitheate..

Trail races of 5K, 10K and half marathon take place on forest trails at Night Owl Landing in Kingston. Packed dirt and some gravel, hydration after each loop, awards for top three in male, female and non binary categories.

Join the laid back Trio Trail Run on March 8, 2026 at Frontier Park in Graham for fun, relaxed trail races. Pick a short 2.5K or scenic 5K two loop course and enjoy family friendly entry with youth discounts and day of race signups.

Tackle rolling, rooty trails at Lord Hill Park on March 14 for the Pie High Trail Run, offering 5K, 10K and half marathon distances. Expect big climbs, mossy forest views and a rugged, rewarding trail experience for all levels.

Join the Running Rugger 5K on March 14, 2026 in Seattle for a scenic run across the University of Washington campus, Rainier Vista and waterfront. All abilities welcome and proceeds support the UW Womxn's Rugby Club for gear, travel and inc..

A beachside trail run at Dash Point State Park near Federal Way offering 10K and half marathon loop courses through sandy shoreline and lush forest, a cupless race policy, limited park parking, and a short kids race.

The fifth annual A2 PT 5K is a family friendly 5K on the Titlow Trails in Tacoma that benefits the National Multiple Sclerosis Society. The event features music, refreshments, a post-run raffle, race T-shirts for early registrants, and an o..

Spring Run For Fun invites trail runners to scenic Bridle Trails State Park in Kirkland, WA with 5 km, 10 km, half marathon, and marathon options on a rolling looped course. Enjoy forest trails, friendly aid stations, and on-site registrati..

Join the Whitehorse Oso Strong Half Marathon in Arlington on March 28, 2026. This community centered 13.1 miles through the Fortson Mill area honors resilience and remembrance while offering a welcoming atmosphere for runners and walkers.

The Redmond Marathon will take place in Redmond on Sunday 29 March 2026. You can run between 13 and 26 miles.

Join the official Daffodil Festival run on Sunday March 29, 2026 in Puyallup for the 6th annual Daffodil 8K. Enjoy a flat, chip timed, family friendly course from Van Lierop Park across the scenic Foothills Trail.