Terrible Twelve

Williamsburg, United States • 23-24 Aug 2025

The Terrible Twelve is a 12-hour self-supported trail running event held at the Warhill Nature Trail in Williamsburg, Virginia. Participants run or walk as many 3.7-mile loops as possible on a crushed gravel course featuring rolling hills and scenic views, though personal lighting is required for night running. The race starts at 7 PM and ends at 7 AM, with a unique format requiring runners to volunteer for one hour during the event to support others. Amenities include water, Tailwind nutrition, indoor restrooms, and space for tents and cooking. The event fosters camaraderie and serves as training for longer ultras. Visit the organization's website for the most recent information.

Race information

3 mi
12 Hour Race on 3.7 Mile Loop
Visit the organization's website for the most recent information.
Trail runs nearby

The Night Owl 9K is a challenging trail race held at Freedom Park in Williamsburg, Virginia. The 9-kilometer course features a mix of single track, fire road, and paved trails with rolling hills and technical sections including roots and twists, ideal for runners familiar with mountain bike-style tr..

The Greensprings 24 is a 24-hour endurance race held in Williamsburg, VA, benefiting The Arc of Greater Williamsburg, a nonprofit supporting adults with developmental disabilities. The race features a USATF-certified 2.215-mile loop course on mainly flat, scenic, crushed gravel trails with minimal e..

The Smithfield Hog Jog is an annual 5K run and walk held at Windsor Castle Park in Smithfield, Virginia. The event features a 5K race with chip timing and a Kid's Piglet Run, where all young participants receive awards. The race welcomes up to 500 participants and offers awards across various age gr..

The Noland Trail 50K & Relay is a unique running event held in Newport News, Virginia, within The Mariners’ Museum Park. Participants can choose to run the solo 50K or join a relay team of 2 to 6 members, collectively completing six laps on the scenic Noland Trail, with short course sections before..

The Snowy Owl 10 Mile is a challenging trail race held at York River State Park in Williamsburg, Virginia. The course features a mix of terrain including five miles of technical single track trails, about three-quarters of a mile on road, and the remainder on dirt fire road trails. Runners will enco..

The Virginia Run for Cancer is a 24-hour solo and team ultramarathon held in Hampton, Virginia, featuring a USATF-certified 3.75-mile flat dirt trail through a nature park. Open to runners and walkers of all abilities, participants can compete individually or as part of a team, with the team coverin..