Blood Rock 100
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Blood Rock 100: Oak Mountain State Park, Pelham AL
Blood Rock is a multi-distance trail running event organized by Southeastern Trail Runs at Oak Mountain State Park, based at the Meeting Center in the Cabins on Tranquility Lake. Portions of the event take place December 4–6, 2026, with the 50K and 25K occurring on December 5 and the 100 and 50 mile options spanning the weekend.
Distances
- 101.79 miles
- 51.19 miles
- 31.18 miles (50K)
- 16.62 miles (25K)
The 100 mile course is two full laps of the new Blood Rock Course; the 50 mile is one full lap. Course surface and profile details include extensive single track, short gravel sections closed to cars, and small paved segments. Reported elevation changes are significant: the 100 mile lists 17,196 ft gain and loss, the 50 mile 8,659 ft, the 50K 5,345 ft, and the 25K 2,885 ft.
Aid is provided at regular intervals, with aid stations approximately every 5 to 7 miles offering hot soup, hot food overnight, cold drinks (participants are asked to bring a cup), and breakfast in the early hours. Shirt order deadlines are noted for October 20 and November 16 (final shirt order placed November 17). Registration closes before the event and there will be no late or on-site registration at the start.
Refund and rollover policy: full refunds are available through the registration platform up to 30 days before registration closes; afterward entries may be rolled over or credited for future Southeastern Trail Runs events. In the event of race cancellation for reasons beyond organizer control, refunds follow the same 30-day rule. Visit the organization's website for the most recent information.
