Trail Running calendar near Downtown Seattle 2025-2026

Race the Reserve is a scenic running event held in Coupeville on Whidbey Island, Washington. Participants can choose from a 5K, 10K, half marathon, or a virtual race of any distance. The course offers a unique experience traversing Ebey's Prairie and Crockett Prairie within Ebey's Landing National H..

Larrabee Lakes is a trail running event held in Bellingham, Washington, starting and finishing at Fairhaven Park. The race offers three distances: 12K, 25K, and 50K, winding through lush green forests and past picturesque lakes within Larrabee State Park. Runners experience a mix of smooth singletra..

The Cougar Mountain Trail Run Series, held in Bellevue, Washington, is a popular annual trail running event hosted by Seattle Running Club and Northwest Trail Runs. The August 2025 race offers three distances: 5K, 14.5 miles, and a full marathon of 26.2 miles, all set within King County’s Cougar Mou..

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

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..

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..

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..

Finlayson Arm is a challenging trail running event held in Victoria, British Columbia, featuring distances of 28K, 50K, and 50 miles, with significant elevation gains of 4,400 ft, 10,075 ft, and 13,000 ft respectively. The course traverses a mix of single and double tracks along coastal mountain tra..

The Cascade Express Marathon, held in Snoqualmie Pass, Washington, is renowned as one of the world's fastest marathons and ranks among the top 25 fastest in the U.S. This point-to-point race features a scenic 26.2-mile downhill course along a gravel trail with a gentle 1500-foot net descent, offerin..

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..

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 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 Brown Bear Salmon Run is a trail running event held at Snoqualmie Pass, Washington, featuring 15K and new 30K race options. Hosted by Evergreen Trail Runs in partnership with Brown Bear Car Wash, this moderately challenging race offers 1900 to 3800 feet of elevation gain on scenic singletrack tr..

Corn Maze Craze is a unique fall running event held at Bob’s Corn & Pumpkin Farm in Snohomish, Washington. Scheduled for September 13, 2025, it offers 5k and 7k distances that combine trail running with the adventure of navigating a corn maze. The course features a run along dirt farm roads through..

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..

The Cirque Series at Crystal Mountain in Washington features a challenging 7.7-mile trail race with 2,544 feet of elevation gain. Starting at the Crystal Mountain base area, runners tackle the rugged Kelly’s Gap service road before ascending to Grubstake, the race’s highest point at 6,861 feet. The..

Ultra Fest in Easton, Washington, is a premier trail running event set in the scenic Central Cascades. Offering distances of 25K, 50K, 50 miles, 100K, and 100 miles, the race features a fast, flat, and smooth gravel course along the Foothills Trail, surrounded by rivers, forests, and mountain views...