Trail Running calendar near Downtown Seattle 2025-2026

Deception Pass 50K/25K, hosted by Rainshadow Running, is staged at Deception Pass State Park near Oak Harbor, WA. The event offers a 50K (≈4,300 ft gain/loss) and a 25K (≈3,000 ft), both starting at the West Point Amphitheater. Runners traverse paved park roads and rugged single-track trails through..

2025 Pigtails Run in Maple Valley, Washington marks its 20th year with the event’s Fat Ass vibe. It offers 50K, marathon, and half-marathon distances, starting and finishing at Four Corners in Maple Valley. The course mostly uses paved river trails, with some dirt and gravel, using out-and-back sect..

Seward Solstice Run is a winter trail race held at Seward Park in Seattle, Washington, offering both a 4.2-mile and a 10k option. The event takes place on Saturday, December 20, 2025, with the start near Seward Park and the loop traversing mostly forested trails on a peninsula beside Lake Washington..

Frost Eagle Trail Run is held at Soaring Eagle Regional Park in Sammamish, WA, a 600-acre sanctuary of birds, deer, and wetlands with about 12 miles of trails. The event features 5-mile and half-marathon distances and marks the sixth stop in Northwest Trail Runs’ Winter Trail Series. Runners navigat..

Lord Hill Trail Run, the kickoff of Evergreen Trail Runs, takes place at Lord Hill Regional Park in Snohomish, Washington. The race offers 5K, 10-Mile, 20-Mile, and 50K distances on over 1,300 acres of forested trails. The route begins with a steep climb up Lord Hill, then uses a larger loop for the..

Lost Lake 25K is a point-to-point trail race in Bellingham, Washington, organized by Yeti Trail Runners. The 25-kilometer course runs from Lost Lake Trailhead to the Larrabee State Park Amphitheater, tracing a moss-draped route through Chuckanut Mountains, Washington’s first state park, with no back..

Little Backyard Adventure in L.B.A. Park, Olympia, Washington, offers 3-, 6-, and 12-hour endurance runs on a ~4-mile loop with ~200 feet of gain. The course winds through a largely single-track forest, with fern-covered canopies and technical twists that test footing. Runners complete as many laps..

Dash Point Trail Run, held in Federal Way, Washington, at Dash Point State Park, offers 10K and half-marathon (13.1 miles) distances. The course is a single loop through lush Pacific Northwest forests and along a sandy beach, with a short lollipop extension for the half-marathon. Trails are non-tech..

OAT Run is a trail-running event on the Olympic Peninsula in Port Angeles, WA, offering three distances: a 12K point-to-point, a half marathon (two waves), and an out-and-back 50K. The race follows the Olympic Adventure Trail along Kelly Ridge, linking Olympic National Park with the Strait of Juan d..

Squak Mountain Trail Run is held at Squak Mountain State Park near Issaquah, Washington. The event offers distances: 12K, Half Marathon, and 50K (with a Kids Race and a 12K Brunch Run). Runners tackle rugged, technical singletrack through lush forest, with elevation gains of about 1,800 ft (12K), 3,..

The Leavenworth Firefighter Challenge is a rugged running event held at the Leavenworth Ski Hill in Leavenworth, Washington, on April 25, 2026. It features three race options—Probie, Arduous, and Sawyer—and climbs about 1,665 vertical feet over roughly 6.2 miles (a 10K) through National Forest terra..

Twilight 12 Hour is a community trail-running event held at Flying Horseshoe Ranch in Cle Elum, Washington. The format centers on a 2.3-mile loop through diverse terrain, including single-track trails, ravines, a creek crossing, and a gravel descent that closes the loop. It’s described as not a race..

Soaring Eagle Trail Run, presented by Arc’teryx Seattle, takes place at Soaring Eagle Regional Park in Sammamish, Washington. The event offers 5K, 10K, and Half distances; the half marathon uses the 10K loop twice, while the 5K is a shorter, abbreviated version. All courses start on the Pipeline Tra..

Leavenworth Trail Fest takes place in Leavenworth, Washington, at the Leavenworth Ski Hill Area. The festival features three distances: Ski Hill 55k, Leavenworth Skyline 27k, and The Town 5k. The Skyline 27k includes about 3,800 feet of vertical, starting at the ski hill base and climbing via The Nu..

Rainier to Ruston Rail-Trail Relay (R2R) is a National Trails Day running event spanning from Mount Rainier to Ruston, near Tacoma, Washington. Scheduled for June 6, 2026, the race brings athletes and community members together to run along the historic railroad grade once used by pioneers heading w..

Vashon Island Ultramarathon & Trail Run takes place on Vashon Island, Washington, offering 50K, 20-mile, and 10-mile options from the Gateway Trail system near SW 178th and 103rd SW. The rolling course is mostly single- and double-track trails with dirt roads and grassy shoulders, about 770 feet of..

Located in North Central Washington, the TedDriven Overland Ultra Relay (TOUR) is a three-day, stage-style team relay through Leavenworth, Cashmere, Entiat, and Lake Chelan. Teams of up to eight runners cover roughly 75 miles per day across 16 legs, navigating with printed maps and elevation guides..

Yeti Ultra Trail Washington, hosted by Yeti Trail Runners, runs on the Palouse to Cascades Trail starting at Hyak Sno Park in Washington. Competitors may choose from three distances: 200K, 100 miles, and 100K. The out-and-back course features about 4,000 feet of total elevation gain, mostly gentle g..

Tiger Peak Challenge is held near Issaquah, Washington, in Tiger Mountain State Forest. Event offers 5 Mile, Half Marathon, and 50K distances. Longer courses climb two of Tiger Mountain’s peaks via the Rainier Trail and High School trail, including a steep ascent in under a mile to West Tiger 1, the..

SISU 24 PNW is a self-supported, 24-hour endurance challenge at Camp Sheppard in the Cascade Mountains near Enumclaw, Washington, close to Mount Rainier National Park and Crystal Mountain. Runners select from six marked trails (3–18.9 miles) and earn points by completing routes, stamping proof at ch..