Carkeek 12 Hour

The Carkeek 12 Hour is a challenging running event taking place in Seattle, WA, on October 25, 2025. Participants can choose to run for either 12 hours or 6 hours on a scenic 1.93-mile loop, known for its elevation gain and unpredictable weather. The event embraces a festive Halloween spirit, encouraging costumes and offering prizes for the best outfits.

It serves as a fundraiser for trail work and advocacy in the Northwest, with all registration fees supporting local trails. The race promises a fun and supportive atmosphere, making it a unique experience for runners of all levels. Visit the organization's website for the most recent information.