Trail Running calendar near Downtown Seattle 2026-2027

A marathon and half marathon near Hyak at Snoqualmie Pass on August 9, 2026. The 2026 route uses an alternate permitted course with about 1,000 feet of net downhill on packed gravel and the marathon is a USATF-certified Boston qualifier.

Set in Washington's Olympic National Forest, this August weekend offers trail races from a 10K to a 100K, including ruck divisions. Courses feature significant elevation on scenic single-track trails. Registration opens in January with disc..

Experience an evening run at Chambers Bay with stunning views of Puget Sound. Choose between 5k, 10k, or half marathon distances on a scenic paved loop featuring rolling hills and sunset vistas.

The Dark Divide Trail Races offer a wild adventure in the remote Washington Cascades. Runners can choose from a 100 miler, 100K, 50K, or 15-mile race on steep, technical trails. The event features a challenging course, qualification require..

Trail races in Victoria BC on single track, short double track and technical mountain trails. Distances include 28 km, 50 km, 50 mile and a combined 50 mile plus 28 km option.

Traverse the scenic Kelly Ridge on single track trails between Olympic National Park and the Strait of Juan de Fuca. Choose from three distances finishing at the clear waters of Lake Crescent.

Experience a fast downhill race through the Cascade Mountains on the Palouse to Cascades Trail. Run through the historic Snoqualmie Tunnel or along Keechelus Lake to earn your custom finisher medal and technical shirt.

Experience a flat out and back course through mossy evergreen forests along the Snoqualmie valley trail. Choose from four different distances starting at Tolt MacDonald Park in the town of Carnation.

Coal Miner is a rugged, self-supported 51.3-mile trail run through the mountains near Roslyn, WA. With no course markings and minimal aid, it demands strong navigation skills and mountain readiness. Finishers must provide summit selfies and..

Celebrate health and recovery with a 5k trail run through the beautiful Illahee Preserve Heritage Park. Enjoy a well supported course in the woods followed by coffee and donuts with the community.

Run through the historic Snoqualmie Tunnel on a fast, downhill course built for speed. This USATF certified marathon is a renowned Boston qualifier, set against stunning Pacific Northwest scenery. Registration includes shuttle service, prof..

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..

A 70 mile, 12 leg trail relay at Moran State Park on Orcas Island for teams of two to six. The course crosses forests, lakeshores and the 2399 foot summit of Mount Constitution with varied uphill and downhill legs over two days.

Ultra Fest offers fast, scenic gravel trail races from 25k to 100 miles in Easton, Washington. Runners enjoy lake and mountain views on an out-and-back course. The event provides on-site parking, crew access, and aid stations for a well-sup..

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.

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..