Trail Running calendar near Bainbridge Island 2026-2027

Experience the forest trails of Carkeek Park in Seattle with 5k and 10k options featuring rolling hills and post-run festivities. Enjoy a community atmosphere with refreshments and awards in a beautiful wooded setting.

Multiple-distance ultratrail event on the Palouse to Cascades Trail centered at Hyak Sno Park on June 26–27, 2026. Courses include 100K, 100 Mile and 200K with supported aid stations, crew access, mandatory gear, and drop bag support.

SISU 24 PNW at Camp Sheppard near Mount Rainier mixes self-supported trail running with 24 hour solo and team formats plus an optional 100 Mile route. Six marked trails, a points system with side quests, and weekend camping are included.

The Needles 50k is a self-supported, unmarked mountain ultramarathon loop near Easton, WA, with 10,000 feet of climbing. Runners must navigate using a provided GPX file and carry all their own supplies, treating water from creeks. A 50-mile..

Test your endurance at Crystal Mountain Resort by tackling mountain trails with a 20 pound pack. Choose from three distances ranging from 6.5 to 18.5 miles in the scenic Mount Rainier National Park region.

A trail race near Issaquah, WA offering 50K, half marathon, 5 mile and kids races on Tiger Mountain trails, with steep climbs, aid stations, and shared-use trails.

A July out and back on the Sammamish River Trail from Bothell Landing offering half marathon, marathon and 50K options with aid at the start and a wood al finisher medal.

A scenic community run or walk near Mossyrock Park offering a 5K and an 8K Hill Challenge that crosses Mossyrock Dam and provides views of Riffe Lake. Family pricing and age-based fees apply; partial refunds available until June 13.

Run through an old growth forest on the Lake Washington peninsula at Seward Park. This Tuesday evening event features technical trail loops, a post race grill, and distances of 4.2 miles and 10 km.

Experience the lush forests and rolling hills of Cougar Mountain Regional Wildland Park at this trail event near Seattle. Choose between 5k, 10.8 mile, and 19.5 mile distances on varied terrain ranging from technical to groomed trails.

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 trail ultramarathon near Easton, WA featuring about 23,000 feet of climbing, roughly 32 miles on the Pacific Crest Trail and a passage through the 2.3 mile Snoqualmie Tunnel. Entry was by lottery and participants must meet trail..

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.

Experience the lush forests and historic grounds of St. Edward State Park at this summer trail run. Choose between a 4 or 8 mile loop followed by a social grill out with hot dogs and watermelon.

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 Mt Rainier offering 50M, 50K and 25K options on mostly single track with large climbs, aid stations, GPX maps and primitive camping at Ranger Creek Campground.

Timed 6, 12, 24 and 32 hour races on a 2.6 mile Lake Padden loop in Bellingham, WA. Proceeds support Whatcom Family YMCA Girls On the Run and 100 mile finishers receive a belt buckle.