Trail Running calendar near Seattle 2026-2027

Experience a 7.9 mile mountain race at Crystal Mountain featuring a 2614 foot vertical gain. Runners reach a high point of 6861 feet at Grubstake while enjoying views of Mt Rainier and the Cascade Range.

The Plain Endurance Runs are remote, self-supported races on Forest Service trails in the Cascade mountains. Distances include a 100K and a 100-mile event with significant elevation change. It is a non-profit event supporting local Search a..

Experience a 70 mile trail relay divided into 12 scenic legs across Moran State Park on Orcas Island. Form a team of two to six runners to tackle diverse terrain and the summit of Mount Constitution over two days.

Ultra Fest in Easton, Washington offers fast, flat trail races on the Foothills Trail across multiple distances with crew access, on-site parking, stocked aid stations, and race medals or buckles.

A themed 5K on September 19, 2026 at Magnuson Park in Seattle that invites participants to walk or run in costume. The trail route includes mild inclines and mixed surfaces and welcomes leashed dogs and suitable strollers.

A weekend of alpine trail races near Cle Elum Washington on September 19 and 20 2026 offering 100 mile, 50 mile and 50K courses with long climbs, remote aid station gaps, required safety kit and qualifying and trail work requirements.

The Fidalgo Trail Run on September 26, 2026, offers scenic trail distances including a 5-mile, half, and full marathon on Washington's Fidalgo Island. The course features ocean views from Rosario Head and a crossing of the iconic Deception..

The North Bend Trail Fest is a two-day celebration of mountain running and outdoor adventure in Washington. Runners can tackle the challenging Skyline 30k, a vertical kilometer race up Mt Si, or a scenic 10k. The event also features a festi..

This point-to-point 25k trail run follows the scenic eastern shore of Baker Lake. Runners are bused to the start to experience old-growth forests and views of Mt. Baker. The autumn setting features unique flora along the route.

Mad Meadows 50 offers a high-elevation trail run through golden larch forests near Leavenworth. The 50k and 50-mile courses feature technical single track and expansive alpine views. It takes place in October, with a cupless race format and..

Trail races near North Bend, WA follow the Middle Fork and CCC trails through old-growth forest and river views. Multiple measured distances from 10k to 50k include aid stations and water crossings.

Experience the beauty of the Olympic Peninsula at Salt Creek 24. Choose between 12 or 24 hour solo runs, relay teams, or a Last Runner Standing trail challenge overlooking the Strait of Juan de Fuca.

Join this unique Halloween themed relay scramble in Black Diamond. Form a team to track down rogue ghosts and return them to Civic Park in a race that combines running with a scavenger hunt.

Experience the lush forests of the Cascade foothills in this seasonal finale featuring distances from 5 miles to a 50K ultramarathon. Run through golden fall colors and mossy trails in the heart of Grand Ridge Park.

Run on the famously flat and fast Willapa Hills Trail in Washington. This festival offers distances from a 5K to a 100-mile ultramarathon, with a scenic route along an old rail grade. It's a community-focused event with modest entry fees su..

A 5k and 10k trail run at Carkeek Park in Seattle on November 7, 2026, featuring forested singletrack, steep climbs and rolling downhills. Routes start and finish in the Lower Meadow beside Piper’s Creek.

Trail races at Deception Pass State Park offering 50K and 25K routes on technical single track trails that cross the Deception Pass Bridge twice, with multiple aid stations, drop bag support, and park parking rules.

Trail runs of 4k, 8k and 12k on a 4.1 km forested loop in Ravenna Park, Seattle, with a staffed aid station and a 230 foot climb per loop. Youth runners under 20 receive a $10 discount.

A winter trail event at Redmond Watershed Preserve on December 5, 2026 offering 5 mile and half marathon routes on well groomed, mostly smooth trails. Offsite parking with shuttle, aid stations for the half marathon, and a Winter Wonderland..

Experience a low key and community focused running event in Maple Valley. This flat course offers half marathon, marathon, and 50K distances for runners seeking a grassroots atmosphere and personal challenge.