#race
Cougar Mountain Trail Run Series (August)
Aug 9, 2025
Starts at 8:30 AM
At a glance
Running
Half Marathon, Marathon, 5 KM Run
Starts at 8:30 AM
Welcome to the 2025 edition of the Cougar Mountain Trail Run Series, put on by Seattle Running Club and Northwest Trail Runs. Our events support King County Parks, with $15 of every entry going to KC Parks.
Events include 5K, 14.5 Miles, and 26.2 Miles on August 9, 2025, starting at 8:30 AM for the longer distances and 9 AM for the 5K.
Registration types
Running
23.33 km Running
Running
42.2 km Running
Running
5 km Running
