Trail Running calendar near Chehalis 2025-2026

The Cougar Mountain Trail Run, held at King County’s Cougar Mountain Regional Wildland Park in Newcastle, Washington, offers a scenic trail running experience just 15 minutes from Seattle. The event features multiple race distances: 5k, 7.6 miles, 19.5 miles, and 50 kilometers, with elevation gains..

The West Seattle Monster Dash is an annual costumed 5K trail run/walk held at Lincoln Park in Seattle, WA. The 14th edition takes place in October 2025 and features a 5K Run/Walk, a Kids Monster Dash for children 12 and under, and a "Just a Shirt!" option. Participants receive a t-shirt with the ico..

The Carkeek 12-Hour is a challenging trail running event held annually at Carkeek Park in Seattle, Washington. Celebrating its 19th edition in 2025, the race offers both 12-hour and 6-hour options on a 1.93-mile loop course featuring 436 feet of elevation gain per lap, including rolling trails and s..

The Grand Ridge Trail Run, held at Grand Ridge Regional Park in Issaquah, Washington, is the final race of the Evergreen Trail Runs season. It offers multiple distance options including 5-mile, half-marathon, full marathon, and 50K, catering to a wide range of runners. The course features two distin..

The Ruff is a challenging 7-mile trail race held at Dog Mountain Trailhead in Carson, Washington, within the scenic Columbia River Gorge National Scenic Area. The course features a steep 3-mile ascent gaining 3,000 feet to Dog Mountain's summit, followed by a 4-mile downhill run on single-track trai..

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 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 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..