Trail Running calendar near Olympia 2026-2027

Fourth annual 5K at Illahee Preserve in Bremerton held during National Recovery Month. Proceeds support the Salish Recovery Coalition and participants receive event swag, a custom finisher medallion, coffee and donuts.

A fast, scenic marathon and half marathon through the Snoqualmie Tunnel near Hyak at Snoqualmie Pass. The marathon is USATF certified and a Boston qualifier, with about 1,000 feet of net downhill on packed gravel.

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 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.

A two day mountain running event and outdoor festival in North Bend, Washington featuring a 30k Skyline championship, a Mt Si vertical kilometer and a Little Si 10k, with awards, finishers medals and local outdoor exhibits.

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

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 multiformat endurance event at Salt Creek Recreation Area with 12 hour and 24 hour loop options, a relay format, and a Last Runner Standing summit challenge offering coastal views and stocked aid stations.

Carkeek 12 Hour is a looped trail event at Carkeek Park offering 12 hour and 6 hour options on a 1.93 mile loop with 436 feet gain per lap. The 2026 in-person event is October 24 and a virtual option runs October 1 to 31 with costume prizes..

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 trail 10K in Port Gamble with single track, dirt roads and about 600 feet of climbing. The event includes a costume contest, entry-limited field and awards for top open and masters finishers.

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 final race of the Evergreen trail season at Grand Ridge Park offers 5 Mile, Half Marathon, Full Marathon and 50K options on forested trails with technical climbs, aid stations and cupless race rules.

Flat out and back trail races on the Willapa Hills Trail near Chehalis, WA offering distances from 5K to 100 miles. Organized by OlyTrailRunners with aid stations, parking, camping options, and low entry fees.

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.

Celebrate Veterans 5K in Tacoma, WA is a community run and walk on November 15, 2026 at Pipeline/Orange Gate Park that honors veterans and supports Project Recover. Registration includes chip timing, a commemorative medal, race photos, and..

Ravenna Refresher is a trail run at Ravenna Park in Seattle offering 4k, 8k, and 12k on a 4.1 km loop through forested ravine. The event includes an aid station, a youth discount, and is part of the Winter Trail Series.