Blood Rock 100

DEC
4
2026
A multi-distance trail weekend at Oak Mountain State Park near Pelham, AL featuring 101.79, 51.19, 31.18 and 16.62 mile races across singletrack, gravel and backcountry.
Fri 4 Dec 2026
UTMB 50K/100K/100M 102 miles 51 miles 31.18 miles 16.62 miles

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About the race

Blood Rock 100 is a multi-day trail race weekend held in Oak Mountain State Park near Pelham, AL and organized by Southeastern Trail Runs. Events in the program include the one hundred mile race plus shorter distances that run on the park's trails and gravel roads.

  • Blood Rock 100 - 101.79 miles, 17,196 ft elevation gain and loss
  • Blood Rock 50 Mile - 51.19 miles, 8,659 ft elevation gain and loss
  • Blood Rock 50K - 31.18 miles, 5,345 ft elevation gain and loss
  • Blood Rock 25K - 16.62 miles, 2,885 ft elevation gain and loss

The 100 is two full laps of the Blood Rock course and the 50 is one full lap. The 50K follows one full lap of the North Loop including the Belcher Tract; the 25K follows part of the Belcher Tract and passes Summit Lake and Demopolis Lake before splitting back to the finish. The 100 course notes about 92.84 miles of single track, 7.74 miles of gravel roads closed to cars, and 1.18 miles of paved roads.

Aid stations are placed approximately every 5 to 7 miles and provide food and drinks; provisions listed include hot soup, hot food overnight, cold drinks, and breakfast in the early hours. Registration and shirt deadlines are specified in advance and there is no on-site late registration. Refunds are issued as race credit: 100 percent credit for cancellations 30 days or more before the event, 50 percent credit for cancellations within 30 days. Visit the organization's website for the most recent information.

102 mi
51 mi
31.18 mi
16.62 mi

Events nearby

Trail running and hiking festival in Pelham, AL with marathon, half marathon, 10K and a family Halloween hike; marathon and half qualify for the 2027 XTERRA Trail World Championship.
Looped trail race at Ruffner Mountain with 6 mile, half marathon, and marathon options, rugged singletrack, two aid stations, and a 200 runner capacity.
A 24 hour challenge at Oak Mountain State Park where participants run ten 5k races spaced 2.5 hours apart, with required illumination, camping options, five hot meals, an event shirt, and a finisher coffin.
Trail event at Red Mountain Park near Birmingham offering 13.5 miles and 27 miles over varied singletrack and rail beds, with aid stations and finish food.
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