Carkeek Cooler Trail Run
Seattle, United States • 1 Nov 2025
Event overview
Carkeek Cooler Trail Run takes place on November 1, 2025, at Carkeek Park in Seattle, Washington. The event offers the following distances:
- 5k
- 10k
The race is the first event in the 2025-26 Winter Trail Series. Online pre-registration has tiered pricing and day-of registration is available; listed entry fees range from $31 to $50 for the 5k and $37 to $55 for the 10k. Runners under 20 years old receive a $10 discount on pre-registration or day-of prices. Participating in four or more series events qualifies a runner for a pair of limited edition Winter Trail Series socks. Series standings use each runner’s best four performances and award points in Female and Open categories.
Course and logistics
The course starts and finishes in the Lower Meadow next to Piper’s Creek. The route is mostly forest (85%) with a mix of fast, wide trail (64%) and narrower rolling trail (36%), including flatter sections and moderate to steep sections. The 5k follows Piper’s Creek Trail, climbs to the head of the valley, traverses the South Ridge Trail, descends Clay Pit and Hillside trails to the meadow. The 10k is two loops of the 5k. Measured climb is about 480 feet for the 5k and 960 feet for the 10k (climb measured within about 10% accuracy).
The aid station is located at the start/finish (the halfway point for 10k runners) and provides water, electrolyte drink, and a variety of carbohydrate or salty foods. Trails remain open to other users during the event. Dogs are not allowed on the course. Visit the organization's website for the most recent information.