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 distance). Winners will receive a gift certificate and a unique trophy from Otter Pawz Lazer . October 7.6-Mile Cross Country // Cougar Cup - The 7.6-Mile Race is a team race - individuals are still eligible to run the 7.6 mile race for podium awards but not the Cougar Cup . The Cougar Cup is open to any team, group or club. In order to participate in the event, teams must sign-up the morning of the race and declare who is on the team. All team members must sign a waiver and list an emergency contact
Hotels Near This Race
Find accommodation close to the start line in Bellevue, WA. Sorted by distance from the race venue. Book early — race weekend hotels fill fast.
RaceHotelFinder earns a small commission when you book through links on this page, at no extra cost to you. Results are sorted by distance from the race venue.
Cougar Mountain Trail Run Series (October) 2026 — Bellevue, WA
Race weekend dates pre-loaded on Booking.com. RaceHotelFinder may earn a commission at no extra cost to you.
Race Travel Insurance
Don't forget travel insurance for October 31.
You've trained for months and booked a trip to Bellevue, WA.
A pre-race injury, a delayed flight, or a family emergency can derail the whole thing.
Travel insurance can help cover your race entry fee, hotel, and flights if you can't make it,
and may cover medical costs if something goes wrong on the course. Plans typically only run
5-7% of your total trip cost — and running events are covered under standard plans with no
additional coverage needed.
Trip cancellation up to 100% of prepaid costs
Running events covered under standard plans — no add-ons needed
Trip interruption up to 150% of non-refundable costs