Trail Running Calendar Washington 2025-2026

The Ruff in Carson, WA, is a 7-mile trail race starting and finishing at the Dog Mountain Trailhead in the Columbia River Gorge National Scenic Area. The course runs entirely on single-track trails: a 3-mile ascent with about 3,000 feet of elevation gain to the summit, followed by a 4-mile downhill..

The Climb 89 will take place in Richland on Friday 5 December 2025.

Redmond Reindeer Romp takes place on December 6, 2025 at Redmond Watershed Preserve in Redmond, WA. The event is the third race in the 2025-26 Winter Trail Series. Distances offered: 5-mile Half Marathon Entry pricing is listed by registration period for each distance. A youth runner discount of..

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..

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 celebrates the season with a fun and spirit..

Deception Pass 50K/25K, organized by Rainshadow Running, takes place in Deception Pass State Park near Oak Harbor, Washington. The course begins at West Point Amphitheater and winds through Cranberry Lake, park roads, and mostly single-track trails that are rocky and rooty, with some steep climbs. T..

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..

Coffee Lovers and Chocolate Lovers 5K & 10K is held in Sumner, Washington, offering two distances: 5K and 10K. Runners traverse the scenic Sumner Link Trail as part of a Pacific Northwest course. The event centers on a unique, themed experience that pairs running with coffee and chocolate, with Keur..

The Langlauf 10K Cross Country Ski Race is held annually at the Mount Spokane Nordic Ski Center in Mead, Washington, the premier cross-country ski area in the Inland Northwest. This traditional 10-kilometer race features wave starts to accommodate skiers of all skill levels and speeds. Celebrated as..

Interlaken Icicle Dash is a trail running event in Interlaken Park, Seattle, WA, held on January 31, 2026. It is the seventh and final event in the 2025-26 Winter Trail Series. Distances offered include: 5k 10k The Winter Trail Series scores participants based on their best four performances. Par..

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..

The event takes place at Dash Point State Park in Federal Way, Washington (5700 SW Dash Point Rd). Distances offered: 10K Half marathon (13.1 mi) The course is a single loop of about 10 km; half-marathon entrants run the loop twice with a short extra lollipop section on each loop to reach 13.1 m..

Badger Mountain Challenge in Richland, Washington is one of eastern Washington’s only ultramarathons, held at the Badger Mountain Preserve with sweeping Columbia Basin views. The 15th annual event runs March 27–28, 2026 and offers seven distances: 15K, 15K ruck, 55K, 50 miles, 50-mile ruck, 100K, an..

OAT Run is a Port Angeles, Washington trail event offering three distances: 12K, a half marathon (two waves), and an out-and-back 50K on the Olympic Adventure Trail. The course is all single-track, traversing Kelly Ridge between Olympic National Park and the Strait of Juan de Fuca, with lush forests..

Squak Mountain Trail Run takes place April 18, 2026 at Squak Mountain State Park, with the main venue at May Valley Loop Trailhead (21492 SE May Valley Rd, Issaquah, Washington). Distances offered include: 50K Half Marathon 12K 12K Brunch Run Kids Race Registration opens September 1, 2025. Online..

Run With the Goats is an annual ultratrail race held on single-track trails in Reata Canyon, near Kennewick, Washington. The 8th edition offers a 50K course with 4,280 feet of elevation gain, run as seven laps of roughly 4.5 miles each, with three divisions: Beers, Lights, and Sobers. Finishers comp..

The Sunflower Relay, Half Marathon, and Full Trail Marathon take place in the scenic Methow Valley, offering runners a unique experience through vibrant wildflower fields, including exclusive access to private sunflower meadows between Mazama and Twisp. Participants can run individually in the half..