Trail Running Calendar Washington 2025-2026

River Ridge Ultra takes place in Spokane, WA, offering a 30-mile loop and two 9-mile options (run and run/ruck). The dirt/road trail course runs from Bowl and Pitcher through Riverside State Park, with aid stations at landmark trailheads and Doomsday Hill. The event emphasizes a Phase One Mission of..

The Klickitat Trail Run, held in Klickitat, Washington, is a nonprofit fundraising event supporting the local community center and K-12 public schools. Scheduled for October 18, 2025, it features a half-marathon and a 5K run/walk along the scenic Klickitat Trail beside the Klickitat River, showcasin..

Larch Madness Trail Races take place at the Loup Loup Ski Bowl near Twisp, Washington. The event offers four distances: 5K (1,300 ft gain), 15K (5,200 ft), 25K (9,100 ft), and 50K (18,200 ft), all with 18-hour cutoffs. Courses blend alpine trails with rugged off-trail sections, and longer distances..

Wild Moose Chase is a Spokane, Washington running event offering 5K, 10K, 25K, Kids Fun Run, and a Wild Moose Chase Virtual Run. Runners traverse a scenic Riverside State Park course, starting and finishing near the Seven Mile Trailhead. Distances cater to all levels, from a 5K to a 25K, appealing t..

Salt Creek 24 is an all-day, all-night endurance event held at Salt Creek Recreation Area in Port Angeles, Washington. It offers three options: a 24-hour race around a 1.3-mile loop, a Relay Team format, and a Last Runner Standing challenge that summits Striped Peak (~3.75 miles with about 1,000 ft..

The Cougar Mountain Trail Run is held at King County’s Cougar Mountain Regional Wildland Park with the event center at Sky Country Trailhead in Bellevue, WA. The October race is part of the Cougar Mountain Trail Run Series, organized by Seattle Running Club and Northwest Trail Runs. A portion of ea..

The Carkeek 12-Hour is scheduled as an in-person event on October 25, 2025, with a virtual option available October 1-31, 2025. The event takes place at Carkeek Park in Seattle, Washington (950 North West Carkeek Park Road). Registration is capped for this event series at 50 runners. Proceeds and d..

Scarin' Up Some Fun 5k Glow Run/Walk is held in Sedro-Woolley, Washington at the Northern State Recreation Area. The event features a 5-kilometer trail route winding through trails, barns and surrounding buildings. It creates a spooky, glow-themed evening atmosphere, with participants encouraged to..

Chamna Chase takes place in Richland, Washington at the Chamna Natural Preserve. The event offers three distances: a half marathon, 10K, and 6K. The course features dirt trails with occasional rocks, a double out-and-back for the half with a middle loop, and the 10K following the initial out-and-bac..

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 Hyak Halloween 25K is a trail run on October 25, 2025 at Snoqualmie Pass, WA, held on Snoqualmie Tribe Ancestral Lands. The event distance is 25K with 1,800 feet of elevation gain and the same elevation loss. Organizers co-direct the event with Tierra Libre Run and offer the First Strides Schol..

ScaryAss 25K/14K/4K is a low-key trail race in Olympia, Washington, starting and finishing at Fall Creek Day Use Area in Capitol Forest. Organizers offer three distances: a grueling 25K to Capitol Peak and back, a scenic 14K loop, and a family-friendly 4K along mountain-bike trails. The 25K features..

The event takes place on Saturday, November 1, 2025, at Carkeek Park in Seattle, Washington. Distances offered: 5k 10k The run is part of the 2025-26 Winter Trail Series. The course starts and finishes in the Lower Meadow next to Piper’s Creek. The route is mostly in forest (about 85%) with a mi..

Pomeroy SoleKids Fall Frenzy 5k is held in Pomeroy, Washington. The 5K starts and finishes at the Pomeroy Community Garden (intersection of 3rd Street and Pataha Street). The race features a flat, fast loop that winds through town amid fall colors and cooler temperatures, making it accessible for fi..

Grand Ridge Trail Run, held at Grand Ridge Park near Issaquah, Washington, is the season finale of Evergreen Trail Runs. The event offers multiple distances: 5 Mile, Half Marathon, Marathon, 50K, 5M Brunch Run, and a Kid's Race. The course uses two distinct loops: a 5-mile loop and a Half-Marathon l..

The Willapa Trail Festival is a multi-distance trail running event held in Chehalis, Washington, with races from 5K to 100 miles. Runners start and finish at Owl and Olive Cafe, using the flat, fast Willapa Hills State Park Trail along the Chehalis River. Distances offered: 5K, 25K, 50K, 50M, 100M...

Ravenna Refresher Trail Run, held at Ravenna Park in Seattle, WA, is the second event in Northwest Trail Runs’ Winter Trail Series. Runners can choose from 4k, 8k, or 12k distances, all on the same 4.1 km loop with about 230 feet of elevation per loop. The course winds through groomed forest trails..

Celebrate Veterans 5K in Tacoma, Washington, is a 5K run held at 4256 84th St E, Tacoma WA 98446. The course is a simple out and back on the new Orange Gate/Pipe Trail, and this is the trail's first official event. The atmosphere honors veterans and features patriotic touches, including a patriotic..

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.