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.

Race information

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