Washington · 31.07 Miles · 19.5 Miles · 7.6 Miles
Cougar Mountain Trail Run Series (October)
Cougar Mountain Trail Run Series (October) is a 31.07 Miles, 19.5 Miles, 7.6 Miles and 5K event held in Bellevue, Washington. Its next confirmed date is Saturday, October 31, 2026.
- Race day
- October 31, 2026
- Location
- Bellevue, WA
Race details
- Date
- Saturday, October 31, 2026
- Location
- Bellevue, Washington
- Distances
- 31.07 Miles, 19.5 Miles, 7.6 Miles, 5K
- Registration
- runsignup.com
- Official website
- cougar.seattlerunningclub.org
Registration, course & weather
- Registration status
- Registration status as last checked October 30, 2026: closed
- Start time
- 8:00 AM PDT
- Course profile
- Loop course; Trail surface
About the Cougar Mountain Trail Run Series (October)
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. OCTOBER'S RACE ONLY - COSTUME CONTEST/CHALLENGE: The October Cougar Mountain races fall a few days before Halloween so let's see who can get into the spirit and run some trails in costume. UPDATE - there will be an award for best costume (any distance) and best group costume (any dista…
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Cougar Mountain Trail Run Series (October): common questions
- When is the Cougar Mountain Trail Run Series (October)?
- The next confirmed date is Saturday, October 31, 2026.
- Where is the Cougar Mountain Trail Run Series (October) held?
- In Bellevue, Washington.
- What distances does the Cougar Mountain Trail Run Series (October) offer?
- 31.07 Miles, 19.5 Miles, 7.6 Miles and 5K.
- How do I register for the Cougar Mountain Trail Run Series (October)?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Cougar Mountain Trail Run Series (October)?
- Registration status as last checked October 30, 2026: closed.
- What time does the Cougar Mountain Trail Run Series (October) start?
- 8:00 AM PDT.
- What is the course like at the Cougar Mountain Trail Run Series (October)?
- Loop course; Trail surface.
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