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Devil Dog Ultras

Triangle, United States • 6-7 Dec 2025

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.

United States Virginia Triangle

Race information

Website Registration
100 mi
100-Mile
100 km
100k
50 km
50k
Visit the organization's website for the most recent information.
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