Trail Running calendar near Downtown Seattle 2026-2027

OAT Run is a single-track trail race on April 11, 2026 in Port Angeles offering 12K, half marathon and a 50K across Kelly Ridge. The event features aid stations, mandatory shuttle service, a cupless policy and an after-party at Extreme Spor..

Trail races at Royal Roads University offering 11 km, 6 km and a 1 km kids race, with one aid station on the long course and a cupless policy.

Trail races at Royal Roads University in Victoria with approximately 11 km, 6 km and a 1 km kids race; the long course has one aid station and the event follows a cupless policy.

Squak Mountain Trail Run on April 18, 2026 features 12K, half marathon, and 50K options on forested singletrack near Issaquah, Washington. Courses include steep climbs, multiple loops, aid stations, and a cupless race policy.

The Capitol Peak races celebrate their 21st year in Washington's Capitol Forest. Choose between a rugged 50 mile ultra or a 25K trail race, both finishing at the Fall Creek Trailhead. Leashed dogs are welcome on the course.

A community event in Lacey on April 25, 2026 with 10K, 5K, and a family 1 mile, including USATF certified 5K and 10K courses. Walkers, wheelchair users, and trained service animals are welcome and proceeds benefit a low vision resource cent..

Event Details The Tiger Claw takes place on May 8-9, 2026, starting and finishing at the Issaquah Community Center in Issaquah, Washington. The event features several trail running challenges on Tiger Mountain. Participants can choose from..

A trail event at Battle Point Park offering 10K, 5K and a Kids Fun Run on wooded trails. Proceeds support the Trails Connect Bainbridge Island campaign for new trail projects.

Trail races at Sky Country Trailhead in Bellevue on May 9 2026 offer 5.1 and 10.8 mile options as part of a summer series. Fifteen dollars from each entry is donated to King County Parks.

A makeup race on May 9, 2026 in Maple Valley, WA marking the event's 20th year. Multiple distances on a riverside, wooded course with low support and a strict 2:30 pm cutoff for the 50K.

Soaring Eagle Trail Run in Sammamish offers 5K, 10K, a half marathon and a kids race on the Pipeline and winding forest trails, with aid stations and cupless racing.

A trail event at Green Mountain Horse Camp on May 16, 2026 offering 25K and 50K distances plus a 25k ruck option. The course is mostly singletrack with substantial elevation gain and marked trails; camping is available onsite.

Leavenworth Trail Fest in Leavenworth, Washington offers trail races of 55K, 27K, and a town 5K across ridgelines and forest roads, plus a festival weekend with food, music, and community partners.

The Freedom 50 ultramarathon offers a 50-mile and a 50k race on the flat, paved Foothills Trail near Puyallup. Runners enjoy scenic views, multiple aid stations, and a 15-hour cutoff. All finishers get a custom medal, and top performers ear..

A loop ultramarathon at Lake Youngs Watershed near Renton, WA, offering 50K to 200 mile options with 900 feet of climb per loop and repeated aid station support; 150 and 200 mile entries begin with an unsupported initial segment.

Three timed ultramarathon options on a clockwise 1.75 mile loop around Lake Tye in Monroe, WA. Runners complete full laps within their chosen time, aid and beach access are available, and proceeds support local trail work.

Trail races of 50K, 20 mile and 10 mile distances on Vashon Island using the Gateway Trail system. Rolling singletrack and park trails with aid stations, a team competition, youth discounts and proceeds supporting island youth athletics.

A team relay of about 50 miles from Mount Rainier foothills to Ruston Way on June 6, 2026. Teams of 2, 3, 4, or 6 compete while proceeds support the Foothills Rails to Trails Coalition.

Trail races on Tiger Mountain State Forest near Issaquah offering 5k, 12.6k and half marathon loop courses with varied terrain, aid stations on longer routes, and start and finish at the DNR trailhead.

A volunteer-run event on June 6, 2026 offering marathon, half marathon, 50K and relay options along the Green River trail to an Alki finish with mostly flat terrain and a couple of short hills.