Cougar Mountain Marathon Race Info



Avg Temps f.


Gain/Loss in ft


Furthest Aid

5.9 miles

Highest Elev.






Time Limit




Longest Climb

3.8 miles/800 feet

Summary: Part of a race series on Cougar Mountain, put on by the Seattle Running Club; throughout the summer both a short and long race are offered on the same day, both series gaining in distance and culminating in a 50k race in October. Popular trails just outside of Seattle, with lots of rollers as well as some harder climbs, and sections of smooth trail combined with technical, rocky, rooty and oftentimes muddy sections. A fun race series to be a part of throughout the year, as it’s popular among Seattle locals looking to race trails across all distances, and very well-organized with lots of support and volunteers who are all part of the local running community.

Race Details

Lessons Learned from Race Reports

  • The registration and start will be at the Sky Country Trailhead off of 166th Way SE (NOT at the Red Town trailhead).
  • Some steeper sections of trail you may have to walk
  • Still a challenging distance being on trails with a fair amount of elevation change


Total gain/loss: 4650/4650

Total climbs:

1×885 feet over 1.9 miles from miles 9.5-11.4

1×800 feet over 3.8 miles from 16.3-20.1 (with 3 false summits along the way)

7 climbs of 200-500 feet

Longest climb: 1×800 feet over 3.8 miles from 16.3-20.1 (with 3 false summits along the way)

Steepest climb: 1×885 feet over 1.9 miles from miles 9.5-11.4 (lots of shorter, steep climbs along the way)

Course Map

Elevation profile

Aid stations

Total aid stations: 5

Furthest distance apart: ~5.9 miles

Locations: Approximately miles 5.9, 11.2, 14.6, 18.8, and 24

What’s available: Information unavailable on race website, but likely typical aid station fare such as water, electrolyte drink, coke, chips…minimal and basic

Crew access

Nothing official, crew could go down Clay Pit Road and see runners at aid stations #1, 4, and 5, which are miles 5.9, 18.8, and 24, and possibly see runners at other points depending on how far they want to go and which trails give them the best access.



Race qualifiers


Race reports

Strava activities and GPX files

Race Website