Trail Running calendar near West Seattle 2026-2027

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 17-18, 2026 offer a half marathon, a downhill 10K, and an uphill 5K hill climb, with all day gondola access and on site camping options.

A 100 mile endurance race through Washingtons Cascade Mountains centered in Easton, with forested and rugged trails and a long-standing volunteer and radio operator community. Finishers under 32 hours may qualify for a Western States lotter..

A roughly 3-mile obstacle trail run at Joint Base Lewis-McChord on 18 July 2026, with waves of 25 released every five minutes and entry capped at 1,500. Packet pick-up includes a shirt, medal, bib and a post-race beverage ticket.

A Tuesday Night Trail to Grill series run at St. Edward State Park featuring a 4.2 mile loop or an 8.6 mile double-loop on varied single track and wider trails, with an aid station offering drinks and snacks.

A free community trail running festival in Seattle on July 22, 2026 featuring a group run, expo, vendors, food, and a raffle. Check in at Seven Hills Running and choose a roughly 4 mile or 6.5 mile route.

A mountain trail event near Greenwater, WA on July 25, 2026 offering 50 Mile, 50K and 25K courses with significant elevation, technical single track and staffed aid stations. Camping is available at the Ranger Creek Campground.

Two days of mountain running on Mount Ellinor near Hoodsport, Washington, with a 24 km Skyrace featuring 1,600 m of ascent and a 10 km Forest Loop. The event is North America’s stop on the Skyrunner World Series and part of the USA series.

A loaded trail event at Esmeralda Trailhead in Cle Elum, Washington on August 1, 2026. Two options: a 13 mile route with 4,406 ft elevation gain and a 9 mile mini with 2,831 ft, each requiring a 20 lb dry load.

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..

Trail races of 5k, 14.5 miles and 26.2 miles take place in King County's Cougar Mountain Regional Wildland Park near Seattle. The event includes aid stations on course, supports King County Parks, and participates in a youth trail series.

A road race on Whidbey Island through Ebey’s National Historical Reserve offering 5K, 10K and a half marathon on hilly, scenic roads. Proceeds support safe and sober graduation activities for Coupeville High School Class of 2027.

A USATF-certified marathon and half marathon near Snoqualmie Tunnel with about 1,000 feet net downhill and a packed gravel surface. The marathon is a Boston qualifier and the event includes chip timing, aid stations, and shuttle service.

One Step Closer is a looped endurance event at Lincoln Park in Seattle where runners log as many laps as they can in 3, 6, 12, or 18 hour divisions. Team entries and kids races of 30 minute and 1 hour are included.

A multi-distance trail race festival in the Olympic National Forest near Quilcene, WA offering 100K, 50K, 25K, 10K and ruck divisions with significant elevation, mostly single-track courses, staffed aid stations and on-site camping.

An evening running event at Chambers Bay in University Place, Washington offering 5k, 10k and half marathon distances on a paved loop with varied terrain, aid stations, race-day packet pick-up, and event swag.

A 5K around Lake Padden in Bellingham that benefits Happy Tails Happy Homes, a nonprofit foster-based animal welfare group. The course is one counterclockwise lap on grass and trails with wooded sections and a few short hills.

A team relay at Crystal Mountain on August 21-22, 2026 featuring three alpine trail loops, a mid-race gondola ride, and views of Mt. Rainier. Multiple team formats are offered, plus on-site camping and glamping at Ragnar Village.