Blood Rock 100
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Event
Blood Rock takes place at Oak Mountain State Park in Pelham, Alabama, at the Meeting Center and Cabins on Tranquility Lake. The event spans early December 2025, with main race days listed as December 5-7, 2025. The weekend includes multiple distances: a 100-mile race, a 50-mile race, a 50K and a 25K. Registration closes on December 1, 2025. Shirt ordering deadlines are October 20 and November 16, with the final shirt order placed November 17. No on-site late registration is offered.
Distances
- Blood Rock 100: 101.79 miles
- Blood Rock 50: 51.19 miles
- Blood Rock 50K: 31.18 miles
- Blood Rock 25K: 16.62 miles
Race details
The Blood Rock 100 is run as two full laps of the new Blood Rock Course; the 50-mile is one full lap. The 50K follows the North Loop and includes the Belcher Tract. The 25K passes Summit Lake and Demopolis Lake and splits from the longer courses just past King's Chair. Cutoffs are listed as 44 hours for the 100, 23 hours for the 50, 18 hours for the 50K, and 12 hours for the 25K.
Course and support
The 100-mile course reports 17,196 ft of elevation gain and loss and is mainly single-track (92.84 miles), with gravel (7.74 miles) and paved sections (1.18 miles). The 50-mile course lists 8,659 ft gain and loss and about 46.42 miles of single track. Aid stations are provided approximately every 5-7 miles and offer hot soup, hot food overnight, cold drinks (participants should bring a cup), and breakfast during the event. Student discount of 50% is available for high school age and younger registrants. Visit the organization's website for the most recent information.
