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Terrible Twelve

Williamsburg, United States • 23-24 Aug 2025

The Terrible Twelve is a 12-hour endurance running event held at the Warhill Nature Trail in Williamsburg, Virginia. Participants run or walk as many 3.7-mile loops as possible from 7 PM to 7 AM on a crushed gravel trail featuring rolling hills. Unique to this race, each runner must volunteer for one hour during the event to support others by cheering, cooking, or counting laps. The race is self-supported, encouraging participants to bring their own supplies and share food. The atmosphere is communal and challenging, with awards and T-shirts recycled from past races, making it a memorable and gritty experience for trail runners. Visit the organization's website for the most recent information.

United States Virginia Williamsburg

Race information

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