Trail Running calendar near Downtown Seattle 2025-2026

The Yeti 100 Mile Endurance Run in Washington is an exciting ultra-running event set in the scenic Cascades, specifically at the Hyak Trailhead along the Palouse to Cascades Trail. Scheduled for June 27-28, 2025, participants can choose from three distances: 100 miles, 100K, and 50 miles, each offer..

The SISU 24 Ultra PNW is an exciting endurance running event set in the stunning Cascade Mountains near Mount Rainier National Park. Participants can choose between a 24-hour solo or team adventure, or tackle a challenging 100-mile race. The event emphasizes self-reliance, with runners setting up th..

The Tiger Peak Challenge is an exhilarating running event set in the scenic Tiger Mountain State Forest near Issaquah, WA. Scheduled for June 28, 2025, participants can choose from three race distances: a 5-mile run, a half marathon, or a challenging 50K. The course features the thrill of climbing t..

The Kill Bill's Oyster Dome Challenge is a unique running event set in Blanchard Mountain, WA, featuring two race distances: 25k and 50k. Named after the challenging ascent known as Kill Bill Hill, the course offers participants a scenic trek through lush trails, culminating at the picturesque Oyste..

Cascade Crest is a renowned 100-mile trail running event held in Easton, WA, known for its challenging terrain and vibrant atmosphere. Participants can expect over 23,000 feet of elevation gain, including a scenic stretch along the Pacific Crest Trail and a unique experience running through the 2.3-..

The Mount Rainier Half Marathon & Trail Events will take place on July 18-19, 2025, at Crystal Mountain Resort in Washington. This scenic race offers participants a chance to experience the breathtaking beauty of the Cascade Range, featuring a mix of towering forests, alpine meadows, and stunning ri..

The Dirt Circus - Seattle will take place in Downtown Seattle on Wednesday 23 July 2025.

The Hamster Endurance Runs is a unique running event taking place on August 2-3, 2025, in Bellingham, featuring 6, 12, 24, and 32-hour races. Established in 2013, this event combines fun and endurance while supporting local organizations, specifically benefiting the Whatcom Family YMCA Girls on The ..

The Beast of Big Creek is a thrilling mountain running event set in the stunning Olympic Mountains of Washington. Celebrating its 15th anniversary, the race features two challenging courses: a 14-mile Skyrace with over 5,200 feet of elevation gain to the summit of Mount Ellinor, and a shorter 5-mile..

The Larrabee Lakes event, scheduled for August 9, 2025, in Bellingham, WA, features a variety of trail running distances: 12K, 25K, and 50K, along with a Kid's Run. Participants will experience scenic trails through lush forests and picturesque lakes, with unique geological views from ridgelines. Th..

The Olympic Mountains Trail Races, organized by Mountain Peaks Racing, will take place on August 16-17, 2025, in the stunning Olympic National Forest, Washington. This event features three challenging race distances: a 100K, 50K, and 25K, each offering breathtaking views and significant elevation ga..

Twilight at the Bay is an exciting running event taking place at Chambers Bay in University Place, Washington. Participants can choose from three race options: a half marathon, a 10k, and a 5k, each offering a unique experience along a scenic loop trail. The course features a mix of flat sections, i..

The Dark Divide Trail Races, hosted by Wonderland Running, will take place from September 5 to 7, 2025, at the Cispus Learning Center in Randle, WA. This challenging event features a 100 Miler, a new 100K race, a 50K, and a 15 Mile Fun Run, all set in the stunning and rugged landscapes of the Dark D..

The Goat Rocks Stage is a thrilling 50-mile, two-day running event set in the stunning Goat Rocks Wilderness, located between Mt. Rainier and Mt. Adams.This challenging stage run is designed for experienced runners, featuring rugged terrain, narrow ridgelines, and breathtaking views of ancient volca..

The Finlayson Arm event, taking place in Victoria, BC, offers an exhilarating trail running experience on Canada's West Coast. Participants can choose from three challenging distances: 28k, 50k, and 50 miles, featuring significant elevation gains and stunning views. The course includes a mix of sing..

The GOAT Run, taking place in Port Angeles, WA, is an exciting trail running event featuring a half marathon, marathon, and 50K race. Set against the stunning backdrop of Olympic National Park, participants will traverse the Great Olympic Adventure Trail, culminating at the picturesque Lake Crescent..

The Cascade Express Marathon and Half Marathon is set to take place on September 6, 2025, in North Bend, Washington. Recognized as one of the fastest marathon courses globally, it features a scenic 26.2-mile route with a significant net downhill of 1500 feet, making it an ideal choice for runners ai..

The Brown Bear Salmon Run is an exciting running event taking place at Snoqualmie Pass, Washington. Scheduled for September 13, 2025, this race features a scenic 15K course that showcases the stunning landscapes of the area, known for its winter skiing and summer recreational activities. Participant..

The Plain Endurance Runs is a challenging running event held in the scenic Cascade mountains of Washington, featuring a 100-mile and a 100K race. Participants navigate approximately 85 miles of trails and 20 miles of forest service roads, with a total elevation gain/loss of around 21,000 feet. This ..

The Cirque Series - Crystal Mountain is an exciting running event set for September 20, 2025, featuring a challenging 7.7-mile course with an elevation gain of 2,544 feet. The race begins at the Crystal Mountain base area, leading participants through rugged terrain, including the Kelly’s Gap servic..