Trail Running calendar near West Seattle 2026-2027

We have found 74 Trailruns within 80 miles of West Seattle. See below where and when you can find the races.

Super Hyak Marathon and Half on June 13, 2026 are USATF certified point to point races from Snoqualmie Pass to North Bend, WA. Both courses are net downhill, include a 2.4 mile tunnel that requires a headlamp, aid stations, and shuttle serv..

A Bellevue trail race at Sky Country Trailhead with 5K, 8.2 mile and 14.5 mile options plus short and long series. Organized by Seattle Running Club and Northwest Trail Runs, with 15 USD per entry donated to King County Parks.

Run the 24th annual Hotfoot 5K at South Kitsap Regional Park in Port Orchard on June 20, 2026, a scenic mostly flat loop through wooded trails and park features. Proceeds support community scholarships and the Fourth of July fireworks and a..

Multi distance trail ultramarathon on the Palouse to Cascades Trail near Hyak featuring the long Snoqualmie tunnel, crushed limestone surface, and distances from 50 miles to 200K with crew access and chip timing.

Trail races in Issaquah, WA featuring 5 Mile, Half Marathon and 50K courses that climb two of Tiger Mountain's peaks, include aid stations and handmade finisher swag. The 50K runs two loops and trails remain open to other users.

A remote loop trail race near Easton, WA with about 10,000 feet of climb. The event has no aid stations or course markings; runners must self-navigate, treat creek water, and carry required gear.

July 2026

A day of road trail racing on the Sammamish River Trail offering a half marathon, marathon and 50K out and back from Bothell Landing Park. The route passes Wilmot Gateway Park and turns at Dr Call's Bench.

Run the July Cougar Mountain Trail Run at Sky Country Trailhead in Bellevue on scenic single track through forest, hills and wetlands with 5K, 10.8 and 19.5 mile options. $15 from every entry benefits King County Parks.

A 100 mile trail endurance race near Easton, WA on July 17, 2026 featuring over 23,000 feet of climb, about 32 miles on the Pacific Crest Trail and the 2.3 mile Snoqualmie Tunnel. Entry is by lottery and specific trail work and qualifier re..

A multi-distance trail weekend at Crystal Mountain Resort featuring a summit-start half marathon, a downhill 10K, and an uphill Hill Climb 5K, with gondola access, chip timing, on-site camping, and a cup-free sustainability policy.

A free community festival for trail runners in Seattle with a group social run, an expo of local race directors and brands, food and a raffle. The Seattle edition offers 4 mile and 6.5 mile run options and a city T-shirt preorder.

August 2026

Trail races at Sky Country Trailhead in Bellevue offering 5K, 14.5 miles, and marathon distances. Organized by Seattle Running Club and Northwest Trail Runs, with $15 per entry donated to King County Parks.

A point to point marathon and half marathon on the Palouse to Cascade and Snoqualmie Valley trails near Snoqualmie Pass and North Bend, Washington. The marathon includes a tunnel and a steady downhill that often produces fast finish times.

Trail races in the Olympic National Forest near Quilcene offering 100K, 50K, 25K and 10K distances, including ruck divisions. Courses feature extensive single track, large elevation gains and remote race headquarters accessed by forest road..

An evening 5k, 10k and half marathon on the paved Chambers Bay Loop Trail in University Place, WA, featuring multi-loop courses, aid stations, race-day packet pick-up, and a strict no-litter policy.

September 2026

Trail ultramarathons in the remote Dark Divide near Randle WA with 100M, 100K, 50K and 15M distances. The 100 Miler requires prior qualifications and includes specific pacer and volunteer requirements.

Trail races in Victoria BC on single track, short double track and technical mountain trails. Distances include 28 km, 50 km, 50 mile and a combined 50 mile plus 28 km option.

Point to point trail races on the Olympic Adventure Trail in Port Angeles, finishing at Lake Crescent inside Olympic National Park. Options include a half marathon, marathon and a 50K, with aid stations, shuttle service and a lakeside after..

A USATF certified marathon and half in North Bend, WA on September 12, 2026, run on point to point gravel courses with net downhill; the half includes a 2.4 mile Snoqualmie Tunnel.

Flat out and back gravel course through mossy evergreen forests at Tolt MacDonald Park in Carnation. Events include 5K, 10K, half marathon and full marathon with aid stations serving water, gels and Nutella sandwiches.