Devil Dog Ultras

Devil Dog Ultras is an exciting trail running event held in Prince William Forest Park, Virginia, featuring 100-mile, 100K, and 50K races. The course consists of primarily single-track trails with some technical sections, and runners can expect well-stocked aid stations throughout the loops. Participants have specific time limits to complete their chosen distances, and new for 2025 is the Devil Dog Dynasty Challenge, rewarding runners for completing multiple distances over consecutive years.

Registration opens on January 1, 2025, with limited spots available, making it essential for interested runners to sign up early. Visit the organization's website for the most recent information.