Blood Rock 100

Blood Rock 100, Pelham, AL, December 4–6, 2026

Blood Rock is a multi-distance trail race weekend held at Oak Mountain State Park, with the Meeting Center at the Cabins on Tranquility Lake serving as the race hub. Courses run through ridge tops, valley floors and backcountry sections of the park, passing secluded pools, waterfalls and mountain lakes such as Summit Lake, Demopolis Lake and Belcher Lake.

Distances include:

• 101.79 miles, Blood Rock 100, two full laps of the new Blood Rock Course, 17,196 ft gain and loss
• 51.19 miles, Blood Rock 50, one full lap, 8,659 ft gain and loss
• 31.18 miles, Blood Rock 50K, one full lap of the North Loop including the Belcher Tract
• 16.62 miles, Blood Rock 25K, includes part of the Belcher Tract and passes Summit Lake and Demopolis Lake

Course surfaces and layout are specified for the longer events, including extensive single track mileage, gravel roads closed to cars and short paved sections. Aid stations are spaced approximately every 5 to 7 miles and provide hot soup, hot food overnight, cold drinks (participants should bring a cup) and breakfast in the early hours.

Registration and shirt ordering follow published cutoff dates. Full refunds are available through UltraSignup up to 30 days before registration closes; after that entrants may rollover or receive credit. In the event of a park closure or similar cancellation, refunds or rollovers are addressed per the stated policy. Visit the organization's website for the most recent information.