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Terrible Twelve

Williamsburg, United States • 23-24 Aug 2025

The Terrible Twelve is a unique 12-hour endurance race held in Williamsburg, Virginia, on the Warhill Nature Trail. Participants run or walk as many 3.7-mile loops as possible from 7 PM to 7 AM, with a one-mile add-on available in the final half hour. The course features crushed gravel and rolling hills, requiring personal lighting for night running. This self-supported event emphasizes community, requiring each runner to volunteer for one hour to assist others by cheering, cooking, or lap counting. Awards and T-shirts are recycled from past races, and participants are encouraged to share food, creating a sweaty, memorable, and camaraderie-filled experience. Visit the organization's website for the most recent information.

United States Virginia Williamsburg

Race information

Website Registration
12 hr
12 Hour Race
Visit the organization's website for the most recent information.
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