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Cougar Mountain Trail Series May

📅 May 8, 2027 (estimated date)📍 Bellevue · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (May 9, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

5.1 mi10.8 mi

About

The Cougar Mountain Trail Series May race takes place on May 8, 2027, in Bellevue, Washington, with 10.8-mile (17.4 km) and 5.1-mile (8.2 km) trail races, both starting at 9 a.m. The series is organized by the Seattle Running Club and Northwest Trail Runs in support of King County Parks, with part of the entry fees donated to the cause.

The series includes several events throughout the year, offering a variety of trail races for all experience levels. Runners can sign up for a short or long series, with awards for overall performance. Participants are encouraged to bring reusable bottles as part of a zero-waste initiative. The event acknowledges the Indigenous peoples of the region, and dogs are not allowed on the course for safety reasons.

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