Off-road running’s answer to the Iron Man triathlon, the Hell Down South event in the Brooks HellRunner series is a rite of passage that only the bravest dare to face: ten to twelve miles of tough, twisting trails traversing the dreaded “Hills of Hell” and “Bog of Doom.” The most recent event, on November 26 and 27, drew around 6,500 competitors to the Longmoor Military Training Camp near Bordon in Hampshire, England, with a sell-out crowd of 5,000 spectators cheering them on.