Early humans developed the ability to sprint in order to chase down sprightly prey and invented long-distance running to escape from slowly approaching glaciers. Follow in their fossilized footsteps with today's Groupon: for $75, you get one admission to the Ragin' Warrior Challenge at the Florida Horse Park in Ocala on Saturday, March 3 (up to a $150 value).

Ragin' Warrior Challenge gathered intel on training and combat from US special ops teams to design a rigorous mud run and obstacle course that pushes runners to their mental and physical brink. Uniformed with an event T-shirt and custom race bib, costume-clad combatants battle through 23 obstacles such as mud pits and rope walls. Controlled explosions, smoke grenades, and speakers blaring "Yakety Sax" add to the intensity and chaos of the event. After the race, warriors receive a goody bag bursting with gifts. Complimentary beer sates of-age thirst as participants mingle and strut stuff during a post-marathon bash, at which food and drink is available for purchase (not included with this Groupon). Warm up adrenaline glands during pre-race activities before toeing up to the starting line, from which waves of runners depart every 30 minutes beginning at 9 a.m. Ragin' Warrior suggests bringing a photo ID, a change of clothes, and any pure nerve leftover after picking a fight with a lumberjack.