Devil Dog Ultras
Triangle, United States • 6 Dec 2025
Event overview
Devil Dog Ultras is a trail running event in Prince William Forest Park (Cabin Camp 5), Triangle, VA, held the weekend of December 6-7, 2025. Distances offered include:
- 100 miles
- 100K
- 50K
General registration opens on UltraSign-up on Jan. 1, 2025 at 0001. Entry is limited to a total of 300 runners and a waitlist will open once the event fills. Base entry fees listed are $275 for the 100-mile, $230 for the 100K, and $115 for the 50K.
Course and logistics
The course is a looped trail primarily on single-track with occasional roots, rocks and brief technical sections, plus stretches of fire road and rolling hills without substantial climbs. The first loop for all distances is 23 miles. Subsequent loops are 19.5 miles for the 100-mile and 100K; the 100K completes three loops and the 100-mile completes five. The 50K completes one loop plus an additional 9-mile loop. The course is described as well-marked.
Each loop includes three staffed aid stations (Camp Remi start/finish, Camp Gunny, Camp Toofy) and three unmanned water-only resupply points (RP Alpha, Bravo, Charlie). Crew access is allowed at Camp Remi and Camp Toofy only. Cutoff times are 10 hours for the 50K, 20 hours for the 100K, and 32 hours for the 100-mile. Bunkhouse lodging: 75 beds available at Camp Remi for registered runners, $30 total for Friday and Saturday nights; bunkhouse vehicles will be parked in a remote lot about 1 mile from the start/finish with shuttle service provided. Visit the organization's website for the most recent information.