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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, Triangle, Virginia, featuring 100-mile, 100K, and 50K distances. The course consists mainly of single-track trails with some roots, rocks, and brief technical sections, along with fire roads and rolling hills but no major climbs. The 100-mile and 100K races involve multiple loops of 23 and 19.5 miles, while the 50K includes a loop plus an additional 9-mile loop. Aid stations are well-stocked with food and water, and crew access is limited to certain points. The event fosters a supportive atmosphere with enthusiastic volunteers and offers a unique loyalty challenge 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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