Trail Running Calendar Washington 2025-2026

The Cougar Mountain Trail Run, scheduled for October 25, 2025, offers a variety of race distances including 5k, 7.6 miles, 19.5 miles, and 50 kilometers. Set in King County’s Cougar Mountain Regional Wildland Park, this event features scenic trails that range from technical to groomed, providing a b..

The Carkeek 12 Hour is a challenging running event taking place in Seattle, WA, on October 25, 2025. Participants can choose to run for either 12 hours or 6 hours on a scenic 1.93-mile loop, known for its elevation gain and unpredictable weather. The event embraces a festive Halloween spirit, encour..

Chamna Chase is an exciting running event held in the scenic Chamna Natural Preserve in Richland, WA. Participants can choose from three race distances: a half marathon, 10K, and 6K. The event encourages a festive atmosphere, with Halloween costumes highly recommended, and prizes for the best outfit..

Salt Creek 24 is a unique running event held at the scenic Salt Creek Recreation Area in Port Angeles, Washington. Participants can choose between a 24-hour race, where they can run or walk a 1.3-mile loop, or the challenging Last Runner Standing event, which involves summiting Striped Peak every ho..

The West Seattle Monster Dash is an annual running event that features a 5K run/walk, a Kids Monster Dash, and an option to register for a t-shirt only. This family-friendly event encourages participants to dress in costumes and includes a Kids Zone with games and activities. The race takes place at..

The Grand Ridge Trail Run is the final event of the Evergreen trail-running season, offering a variety of distances to accommodate all participants, including a 5-mile run, half-marathon, full marathon, and 50K. Set in the scenic Grand Ridge Park, the race features a well-developed trail system idea..

The Ruff is a 7-mile trail race held in Carson, Washington, that takes participants up Dog Mountain in the Columbia River Gorge National Scenic Area. The course features a challenging 3-mile ascent to the summit with 3,000 feet of elevation gain, followed by a 4-mile downhill run on single-track tra..

The Climb 89 will take place in Richland from Friday 5 December 2025 to Saturday 6 December 2025.

The 2025 Pigtails Run marks the 20th anniversary of this unique running event, celebrated for its relaxed, low-key atmosphere. Scheduled for December 13, 2025, participants can choose from various distances, including a 50K, marathon, and half marathon. The race emphasizes self-sufficiency and camar..

Saturnalia is a festive winter running event hosted at Squaxin Park in Olympia, WA. This unique 10K race embraces the challenges of winter trails, including darkness and varying weather conditions, making it a fun holiday celebration for participants. The event is designed to bring together the comm..

The Langlauf 10K Cross Country Ski Race is a celebrated event taking place at the Mount Spokane Nordic Ski Center, known as the premier cross-country ski area in the Inland Northwest. Scheduled for January 25, 2026, this race marks its 45th year, attracting participants of all skill levels with wave..

The Little Backyard Adventure is a trail running event held at L.B.A. Park in Olympia, Washington. It features 3, 6, and 12-hour endurance races on a looped course of approximately 4 miles, with about 200 feet of elevation gain per loop.The course winds through lush, wooded single-track trails withi..