Trail Running calendar near Snohomish 2025-2026

The White River 50M/50K/25K is a trail running event held in Enumclaw, Washington, organized by Rainshadow Running. Set in the scenic shadow of Mt. Rainier (Tahoma), the race offers stunning views of Washington's tallest peak.The 50-mile race features 10,200 feet of elevation gain across ridge tops..

The Beast of Big Creek is a challenging mountain trail running event held at Big Creek Campground near Hoodsport on the Olympic Peninsula, Washington. Featuring three race options, it includes a 22K Skyrace to the summit of Mount Ellinor with over 5,300 feet of elevation gain, an 8K Forest Loop thro..

Hamster Endurance Runs is a multi-distance ultrarunning event held annually at Lake Padden in Bellingham, Washington. Established in 2013, the race offers 6, 12, 24, and 32-hour endurance challenges on a well-marked 2.6-mile loop trail around the lake, featuring compact dirt and crushed gravel with..

The Cougar Mountain Trail Run Series #4 takes place on August 9, 2025, at King County’s Cougar Mountain Regional Wildland Park in Newcastle, Washington, just 15 minutes from Seattle. This event offers three race distances: 5k, 14.5 miles, and a full marathon of 26.2 miles. The course features a vari..

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..

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 traverses the beautiful Ebey's Landing National Historical Reserve, including Ebey's Prairie and Crockett..

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 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..

Finlayson Arm is a challenging trail running event held in Victoria, British Columbia, featuring distances of 28K, 50K, and 50 miles. The course includes a mix of single track, double track, and coastal mountain trails through old growth forests and Arbutus trees. Runners face significant elevation..

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..

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 multiple distances including a 5K, 10K, half marathon, and full marathon. The course is a flat, out-and-back gravel trail that meanders throug..

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 for the third time in 2025 and sponsored by Brown Bear Car Wash, the race showcases a scenic course combining singletrack trails and Forest Service/Ski Area Access r..

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 Stehekin event is a four-day adventure run set in the remote and stunning North Cascades valley of Stehekin, Washington, accessible only by boat, plane, or trail. Covering distances between 40 to 70 miles from September 17-20, participants begin with a challenging ascent to Cascade Pass, followe..

The Cirque Series at Crystal Mountain, Washington, is a challenging 7.7-mile trail race featuring 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 co..