Cougar Mountain Trail Run Series (May) – Bellevue, WA 2026
Date
May 9, 2026
Location
Bellevue, WA
Venue
Sky Country Trailhead
Start Time
9:00 AM
Entry Fee
$50.00 – $225.00
Events
5.1 Miles, 10.8 Miles, Short Series (May 5.1, June 8.2, July 10.8, August 14.5), Long Series (May 10.8, June 14.5, July 19.5, August 26.2)
Welcome to the 2026 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 May 9: 5.1 Miles & 10.8 Miles 9 AM start for all races, 12:00 PM cut-off (~16:40 pace for 10.8 miles) June 13: 5K, 8.2 Miles & 14.5 Miles 9 AM start for all races, 1:00 PM cut-off (~16:35 pace for 14.5 miles) July 11: 5K, 10.8 Miles & 19.5 Miles 9 AM start for all race, 2:30 PM cut-off (~16:55 pace for 19.5 miles) August 8: 5K, 14.5 Miles & 26.2 Miles 8:30 AM start for the 14.5 and 26.2, 9 AM start for the 5K, 4 PM cut-off (~17:10 pace for the marathon) October 24 : 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 (~17:25 pace for 50K, ~19:30 pace for early start) Series (BEST 3 OUT OF 4 RACES is eligible for awards): Short S
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