Devil Dog Ultras

Devil Dog Ultras is a challenging trail running event held in Prince William Forest Park near Triangle, Virginia. It offers three race distances: 100 miles, 100K, and 50K, all run on a loop course featuring primarily single-track trails with some roots, rocks, and rolling hills but no major climbs. The 100-mile and 100K races consist of multiple loops (five and three respectively), while the 50K includes one loop plus an additional 9-mile loop.

The course is well-marked with fully stocked aid stations providing hot food and water, and crew access is limited to certain points. The event fosters a supportive atmosphere with enthusiastic volunteers and includes a unique loyalty program rewarding runners who complete multiple distances over consecutive years. Visit the organization's website for the most recent information.