Cougar Mountain Trail Run

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..

One Step Closer is a unique summer endurance running event held at Lincoln Park in Seattle, Washington. Created by Orca Running and Evergreen Trail Runs, this race features a diverse 2-mile loop course that challenges participants with a mix of trail and looped terrain. Runners choose from four time..

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 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..