Cougar Mountain Trail Run Series (October)

      #race

      Cougar Mountain Trail Run Series (October)

      Oct 25, 2025
      Starts at 8:00 AM
      7077 Clay Pit Rd, Bellevue, WA 98006, US

      At a glance

      Running
      Ultramarathon, Marathon, 10 KM Run, 5 KM Run
      Starts at 8:00 AM

      Event Overview

      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 a portion of every entry going to KC Parks.

      Course Description & Map

      The course builds on itself throughout the series and brings runners through a lush forest of fern-lined single-track trails, over hills and along marshes and wetland habitats. This is a great series to supplement the training regime for a fall marathon or ultra. Cougar Mountain features rolling hills, a few moderate climbs, and a few steep but short inclines.

      Schedule

      October 25: 5K, 7.6 Mile Cross Country, 19.5 Miles & 50K

      8 AM start for the 19.5 and 50K (7 AM early start will be available), 9 AM start for 7.6 Miles and Cross Country event, 9:30 AM start for 5K, 5 PM Cut-off.

      Registration & Pricing

      50K: $100, 19.5 Miles: $75, 7.6 Miles: $55, 5K: $40. Registration ends October 22, 2025 at 11:59 PM PDT.

      Packet Pickup Details

      Event-day registration is available starting at 7:00 AM.

      What to Bring

      Bring a refillable water container with you on the trail to use at aid stations along the way and post-race.

      Race Day Info

      October 25, 2025. Please arrive early for registration and warm-up.

      Awards & Categories

      The top 3 Men, Women, and Nonbinary Runners in each event will receive a podium prize.

      Parking & Transportation

      Parking is available at the Sky Country Trailhead.

      Contact Information

      For questions, contact the race director at [email protected].

      Cancellation Policy

      There are NO REFUNDS.

      Start point

      7077 Clay Pit Rd, Bellevue, WA 98006, US

      Registration types

      Running
      50 km Running
      Running
      31.36 km Running
      Running
      12.23 km Running
      Running
      5 km Running

      Event website

      Logo
      Acceptable use policyCookie policyDisclaimerDMCA policyImpressumPrivacy policyTerms and conditions
      Logo
      SearchExplore
      Sign In

      More events like this

      Mount Rainier Half Marathon

      Mount Rainier Half Marathon

      #race6:00 PM
      18
      Fri
      Cascade Crest 100 Mile Endurance Run

      Cascade Crest 100 Mile Endurance Run

      #race9:00 AM
      18
      Fri
      View all