Cougar Mountain Trail Run Series #4 5K | 14.5 Mi | 26.2 Mi
August 8, 2026 @ 6:30 am - 3:30 pm
Hosted by Seattle Running Club and Northwest Trail Runs, the Cougar Mountain Trail Series supports King County Parks. The Cougar Mountain courses gradually get longer throughout the series. Run through a lush forest of fern-lined single-track trails.
August Event
5K, 14.5 Miles & 26.2 Miles
14.5 and 26.2 start at 8:30 AM, 5K at 9 AM, cutoff is 4 PM; ~17:10/mile for the marathon
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