Trail Running Calendar Washington 2025-2026

The One Step Closer will take place in Seattle on Saturday 16 August 2025. You can run between 3 and 18 kilometers.

Twilight at the Bay is a scenic running event held at Chambers Bay Loop Trail in University Place, Washington. Participants can choose from a half marathon, 10k, or 5k race, each featuring loops on a wide, paved trail with a mix of flat sections, inclines, and switchbacks. The course offers breathta..

The Olympic Mountains Trail Races, held in the Olympic National Forest near Quilcene, Washington, offer challenging trail running events over two days in August. Distances include a 100K ultra with 14,200 feet of elevation gain on mostly single-track trails, a demanding 50K featuring 8,600 feet of c..

The Lakeside High School XC Alumni Community 5k is a family-friendly running event held in Nine Mile Falls, Washington. This inaugural race features a variety of distances and categories, including a fast and challenging 3.1-mile race for current high school runners, an alumni race, a community 5k o..

The Paradise Valley Trail Run, held at Paradise Valley Conservation Area in Woodinville, Washington, offers trail races in 5k, 10k, and half marathon distances. The courses feature gently rolling trails with a mix of wide promenades and narrow, winding paths through wetland cedar groves and forested..

The Gulch Countdown is a unique trail running event held in the scenic Japanese Gulch forests of Mukilteo, Washington. The race features a 2.18-mile loop through lush terrain with ferns, moss-covered trees, and giant cedars, offering a mountain-like experience close to home. It is a "Last Person Sta..

Zero Dark Ultra is a unique 12-hour self-supported ultramarathon held in Spokane, Washington, starting at sunset and ending at sunrise. The event features a 1.58-mile continuous loop on dirt and wood chip trails, encouraging runners to embrace darkness for reflection, gratitude, and hope. It begins..

The Goat Rocks 50 Miles 2 Day Stage Run is a challenging trail running event set in the stunning Goat Rocks Wilderness between Mt. Rainier and Mt. Adams in Washington.This two-day stage run covers 50 miles of rugged alpine terrain featuring narrow ridgelines, volcano views, meadows, lakes, and cragg..

The Sole Survivor Backyard Ultra in Richland, Washington, is a unique endurance trail running event inspired by Big's Backyard Ultra. Held at 1200 Carrier Rd., the race challenges participants to complete a 4.1667-mile loop every hour on the hour until only one runner remains. The course features mo..

The Dark Divide Trail Races, held near Randle, Washington, offer a challenging and scenic ultramarathon experience in the rugged Dark Divide Roadless Area of the Central Washington Cascades. The event includes a 100-mile race, a new 100K point-to-point course, a 50K, and a 15-mile fun run, all start..

Beat The Blerch is a unique running event held in Carnation, Washington, about 35 minutes from Seattle, at King County’s Tolt MacDonald Park. The race offers four distances: 5K, 10K, half marathon, and full marathon. The course is a beautiful, flat, out-and-back gravel trail that winds through everg..

The Tartarus Backyard Ultra is a unique endurance event held at Camp 7 in Riverside State Park, Spokane, Washington. It features two separate races: a running race with 4.1667-mile loops and a rucking race with 2.2-mile loops. Participants must complete each loop within an hour, starting a new loop..

The GOAT Run in Port Angeles, Washington, is a challenging trail running event featuring a half marathon (~14 miles), marathon (just under 26 miles), and 50K race. The point-to-point course traverses Kelly Ridge along the Olympic Adventure Trail, between Olympic National Park and the Strait of Juan..

The Jump Off Joe Marathon, held near Kennewick, Washington, offers marathon, half marathon, and 10k distances. Now in its 10th year, this low-key, affordable event takes place on gravel roads around Jump Off Joe Mountain, providing a trail-like running experience rather than a typical flat road race..

The Recovery 5k is a trail run held at Illahee Preserve Heritage Park in Bremerton, Washington. Celebrating overcoming behavioral health challenges, this event supports the Salish Recovery Coalition. Now in its third year, the well-supported 5k course offers a fun run, walk, or hike through beautifu..

The Cascade Express Marathon and Half Marathon, held in Snoqualmie Pass and North Bend, Washington, is renowned as one of the fastest marathon courses in the U.S., ranking in the top 25 fastest and top 10 Boston Qualifier courses with a BQ rate over 34%. The marathon features a scenic 26.2-mile poin..

Backcountry Rise in Toutle, Washington, unfolds in the Mt. St. Helens National Volcanic Monument’s northern backcountry.The weekend features three remote trail races: a 50K (one epic clockwise loop on 99% backcountry singletrack) with 7,600 ft of ascent and descent; a 20-mile loop with 4,800 ft gain..

Cutthroat Classic is a 10.5-mile singletrack trail run through the North Cascades, beginning at Rainy Pass on the Pacific Crest Trail and finishing at Cutthroat Creek Trailhead after ascending to Cutthroat Pass (6,835 ft) and a long descent to Cutthroat Lake. The route rewards runners with dramatic..

The Mt. Spokane Trail Run, held at Mt. Spokane State Park in Mead, Washington, offers a rugged and scenic trail running experience through forested slopes.The event features multiple race distances including 5K, 10K, and 25K, as well as a virtual run option. Participants navigate challenging climbs..

Plain Endurance Runs, held near Leavenworth, Washington, feature challenging 100-mile and 100K races through the Cascade Mountains' remote US Forest Service trails and roads. The course covers about 85 miles of trail and 20 miles of forest roads, with an elevation gain and loss of roughly 21,000 fee..