Trail Running calendar near West Seattle 2025-2026

The Harriers Gunner Shaw Cross Country Classic is an annual 10-kilometre cross country race held at Thetis Lake Park in Victoria, British Columbia. Known for its challenging course, the race features rugged trails with roots, rocks, stumps, puddles, and six significant hills, making it a true autumn..

The Pigtails Run, celebrating its 20th year in 2025, is a low-key, self-supported "Fat Ass" style race held in Maple Valley, Washington. It offers distances of 50K, marathon, and half marathon along a mostly paved trail with some dirt and gravel sections, running alongside the Cedar River and throug..

Saturnalia is a winter trail running event held at Squaxin Park in Olympia, Washington. Featuring a 10K distance, it offers participants a festive holiday atmosphere amid the challenges of winter trails, darkness, and variable weather conditions. The event is designed as a fun celebration, inviting..

The Deception Pass 50K and 25K races take place at Deception Pass State Park in Oak Harbor, Washington, known for its rugged coastline, steep cliffs, dense forests, and stunning views. The courses traverse nearly the entire park, including two crossings of the historic Deception Pass Bridge, about 1..

The Little Backyard Adventure (LBA) is a trail running event held at L.B.A. Park in Olympia, Washington. Featuring 3, 6, and 12-hour endurance runs, the race challenges participants to complete as many ~4-mile loops as possible on a twisting, technical single-track course through the lush, forested..

The OAT Run is a trail running event held in Port Angeles, Washington, on the Olympic Adventure Trail. It offers three race distances: a point-to-point 12K, a half marathon, and an out-and-back 50K, all on single-track trails traversing Kelly Ridge between Olympic National Park and the Strait of Jua..

The Yeti Ultra Trail Washington is a premier endurance running event held at the Hyak Trailhead on the Palouse to Cascades Trail in Washington state. Offering 50-mile, 100K, and 100-mile distances, the race features a runner-friendly, out-and-back course with a total elevation gain of 4,000 feet and..

The SISU 24 Ultra PNW is a unique endurance event held at Camp Sheppard near Enumclaw, Washington, in the scenic Cascade Mountains close to Mount Rainier National Park. Participants can choose from a 24-hour solo or team adventure, or tackle the challenging 100-mile race with a 32-hour cutoff and ov..