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Cougar Mountain Trail Run Series (October)
50K
19.5 Miles
7.6 Miles
5K

Cougar Mountain Trail Run Series (October)

Saturday, October 31, 2026Bellevue, WA, US

The Cougar Mountain Trail Run Series (October) is a 50K / 19.5 Miles / 7.6 Miles / 5K race held on Saturday, October 31, 2026 in Bellevue, WA, US. Explore registration links, course details, and an AI-powered training plan on Traxamo.

What are the key details for Cougar Mountain Trail Run Series (October)?

Key race details for Cougar Mountain Trail Run Series (October)
DateSaturday, October 31, 2026
LocationBellevue, WA, US
Distances50K, 19.5 Miles, 7.6 Miles, 5K
Race Countdown
27

days to go

3 weeks of training remaining

Today
Race Prepwk 1/3

Tapering now — 3 weeks out. Reduce volume but keep some intensity. The fitness is locked in.

About this raceBeta

The Cougar Mountain Trail Run Series offers a variety of distances, making it suitable for runners of different experience levels. Set in Bellevue, WA, the race takes place in late October, providing a scenic backdrop of fall foliage along the trails.

Highlights

  • •Multiple distance options: 50K, 19.5 miles, 7.6 miles, and 5K to accommodate various abilities.
  • •The race is set in Cougar Mountain Regional Wildland Park, known for its beautiful trails and natural scenery.
  • •Late October timing may offer cool weather and vibrant autumn colors, enhancing the running experience.

Who it's for

This race is ideal for trail runners of all levels, from beginners looking to tackle a 5K to experienced ultramarathoners aiming for the 50K.

Course character

The course features a mix of rugged trails typical of the Pacific Northwest, with potential elevation changes due to the hilly terrain of the region. Expect a natural, scenic environment that may include some challenging sections.

Local tips

  • •Check the weather forecast in advance, as October can bring rain and cooler temperatures.
  • •Consider using public transit or carpooling, as parking may be limited near the park.
  • •Bring layers and a waterproof jacket to prepare for changing weather conditions.
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