Trail Running calendar near Maple Valley 2026-2027

A timed stair-climb at T-Mobile Park where participants tackle either 900 or 1,800 stairs to raise funds for the Cystic Fibrosis Foundation. Climbers start in waves by self-identified pace and join an official after party.

A Spartan obstacle course weekend near Monroe Washington featuring wooded trails and narrow paths with Sprint, Super, Beast and kids races. The program also includes an obstacle workshop a four hour Hurricane Heat and spectator access.

Cirque Series at Crystal Mountain is a 7.9 mile trail race with 2,614 feet of vertical gain on September 19, 2026. Sport, Expert and Pro divisions offer prizes and series points, and timing is by disposable bib chip.

A mountain ultramarathon near Leavenworth Washington offering self supported 100K and 100 mile courses with about 21,000 feet of elevation change. Proceeds support local Search and Rescue and military veteran groups.

Ultra Fest in Easton, WA runs September 19 to 20 with distances from 25K to 100 miles. The course is described as flat and fast in the Central Cascades, with on-site packet pickup, parking, and drop bag options for longer races.

Alpine trail races near Cle Elum, Washington offering 100M, 50M and 50K options over rugged, remote terrain with long climbs, widely spaced aid stations and required safety gear; 100 mile entries must meet qualifying and trail work rules.

A 5K themed walk or run at Magnuson Park with Villain Zones and a Heroes Village, featuring mixed gravel and trail sections, mild inclines, and welcome leashed dogs and suitable strollers; costumes are encouraged.

Two days of mountain running and an outdoor festival in North Bend, WA, featuring a 30 km skyline race with 6,300 ft of vertical gain, a Vertical Kilometer, a 10k to Little Si, and a two day double with limited entries.

The North Bend Skyline 30K will take place in North Bend on Monday 5 October 2026.

A remote October trail event near Leavenworth featuring **50k** and **50 mile** courses with alpine ridgelines, golden larches, technical single track, significant elevation gain, and cupless aid station support.

A six hour trail running event on the Swauk Forest Discovery Trail near Blewett Pass on October 10, 2026. The 2.45 mile single track loop has about 650 ft of climbing and features a fall themed potluck aid station and a post race dinner opt..

Trail races on the Middle Fork and CCC trails in North Bend, WA, on October 10, 2026. Distances from 10k to 50k feature river valley scenery, aid stations, and some unbridged creek crossings.

A looped trail fundraiser at Carkeek Park in Seattle offering timed 12 hour and 6 hour options in person on October 24 2026 and virtually October 1 to 31. The 1.93 mile loop gains 436 feet per lap and entries are capped at 50.

A costumed community event at Lincoln Park featuring a trail 5K, kids dashes, and a virtual shirt option to support South Seattle College Cooperative Preschools. Registration includes a Monster Dash shirt and the 5K includes a timed bib.

An evening team relay in Ten Trails where teams of one to three hunt and return six hidden ghosts in Civic Park; free registration, prizes for fast finish, best team name, and best costume.

A 10K trail race in Port Gamble, Washington, on single track and dirt roads with about 600 feet of climbing mostly in the first three miles. The event features a costume contest, a tech shirt and medal, awards, and a field limited to 100 ru..

Trail races at Cougar Mountain Regional Wildland Park near Seattle offering 5k, 7.6 mile, 19.5 mile and 50k courses through forested single track, rolling hills and marshes. Proceeds support King County Parks.

The Grand Ridge Trail Run on November 7, 2026 closes the Evergreen season with multiple trail distances through forested trails at Grand Ridge Park. Courses include 5 Mile, Half, Full Marathon and 50K; aid stations are provided and the even..

A flat, out-and-back trail event in Chehalis with five distances from 5K to 100 miles, packed-gravel surfaces, multiple aid stations, low entry fees, and proceeds supporting the Willapa Hills Trail.

A forested trail run at Carkeek Park in Seattle offering 5k and 10k courses with rolling and steep sections, an aid station at the start, and a youth discount for runners under twenty. Dogs are not allowed on the course.