Trail Running calendar near Bainbridge Island 2026-2027

Trail out and back on the Sammamish River Trail from Bothell Landing offering a half marathon, a full marathon and a 50K. Water and snacks are available and finishers receive a wooden medal.

Choose a 5K or the 8K Hill Challenge on trails that cross Mossyrock Dam, with Riffe Lake views and a short cross-country section. Family pricing and youth rates are available; partial refunds permitted before June 13.

An evening trail run at Seward Park on July 7, 2026, featuring a mostly forested loop with **4.2 mile** and **10k** options, an aid station, post-race food, youth series scoring, and awards for top finishers.

A multi-distance trail event at Cougar Mountain Regional Wildland Park near Seattle, featuring forested single-track, rolling hills and marshside trails. The 21st annual series supports King County Parks and includes a multi-race series com..

Mud Mountain Trail Fest is a trail running event at Mud Mountain Dam in Enumclaw, Washington on July 11, 2026. It offers a 4 Miler and a 10K on forested trails described as moderately challenging.

An all-ages glow run through the Snoqualmie Tunnel on the Palouse to Cascades trail with LED lighting, two participant waves, onsite merch options, and a post-race outdoor block party with food, games and drinks.

A 5K trail run and walk on Tiger Mountain with an out and back route over unpaved roads and a short cross country section. The event is clothing optional and is sponsored by Tiger Mountain Family Nudist Park.

Trail races at Crystal Mountain near Mount Rainier on July 17 and 18, 2026, include a 5K hill climb, a 10K downhill and a half marathon. Registration includes an all day gondola pass and the weekend offers an expo, camping and race photos.

A 100 mile endurance run through the Cascade Mountains near Easton, Washington, run under a special use permit in the Okanogan-Wenatchee National Forest. The event centers on a long standing community of organizers, volunteers, HAM operator..

A roughly 3 mile obstacle trail run at Joint Base Lewis McChord on July 18, 2026, limited to 1,500 entrants. Waves of 25 start every five minutes and packet pickup includes a shirt, custom medal, bib and beverage ticket.

Trail races at St. Edward State Park near Lake Washington offering 4 mile and 8 mile looped courses on mixed single track and wider trails, with an aid station at the start/finish. Part of the Tuesday Night Trail to Grill series.

Dirt Circus Seattle is a one-day community running festival on July 22, 2026, featuring a group run with short and longer routes, an expo with vendors, food, and a raffle. Check-in is at Seven Hills Running and the event is cupless.

A trail ultramarathon near Greenwater, WA with 50M, 50K and 25K options on mostly single track. Routes start and finish at Ranger Creek Campground with significant elevation gain and multiple aid stations.

A multi day endurance event at Lake Padden offering six, twelve, twenty four and thirty two hour races on a marked 2.6 mile loop with night lighting, on course aid, and awards for top finishers.

A two-day trail running event in Hoodsport, WA featuring a **22 km** skyrace to Mt. Ellinor and an **8 km** forest loop, part of international skyrunning and qualification series.

Stair races and walks at Stadium Bowl in Tacoma with one lap and two lap options, a Heroes Race with weighted vests, and proceeds supporting Kindred Souls Foundation. Open to participants aged eight and up with guardian supervision for mino..

A trail race on August 8, 2026, starting at Fairhaven Park and running into Larrabee State Park. Routes showcase forest, lakes, and narrow ridgelines with options of 12K, 25K and 50K and significant elevation gain.

A community trail running event at Cougar Mountain Regional Wildland Park offering 5k, 14.5 mile and 26.2 mile courses through forested, varied single-track; part of a multi-race series with youth scoring and aid stations along each course.

A multi-distance road and trail race in Coupeville on Whidbey Island, running through Ebey's Landing National Historic Preserve with ocean, prairie and mountain views, plus a virtual option.

A mostly downhill rail-trail marathon and half marathon through the Snoqualmie Tunnel and mountain scenery. Both races will be USATF certified and the marathon will be a Boston qualifier; packed gravel surface and shuttle service are provid..