history. Every week, thousands of marathoners, CrossFitters, and casual weekend warriors shell out money to run through mud and fire, crawl under barbed wire, scramble over ten-foot walls, and dodge baton-wielding gladiators. Some even sprint through electrically charged wires only to suffer muscle-seizing shocks and faceplant in the muck.In　Off Course, Outside　journalist and endurance athlete Erin Beresini dives straight into this strange world to reveal a new subculture of military-inspired amateur competition and the industry that’s rapidly growing to support it. Having reached a crossroads in her own athletic pursuits, Beresini embarked on a　journey to train and compete in several obstacle races herself, culminating in the world’s first marathon-length event, the grueling Spartan Ultra Beast. Along the way, she met a wild cast of characters, from frat boys to housewives, fitness buffs to financiers to fanatics, and uncovered the sport's biggest scandals, lawsuits, and rivalries.　As Beresini inches ever closer to her goal — and gets pretty buff in the process — she also illuminates the history, psychology, science, and sociology of this new sport that’s taking the endurance world by storm.

    Top five Best Books About Running, Runner's World Magazine Top three Best Books About Running, readers of Runner's World Magazine(December 2009) A phenomenal portrait of courage and desire that will do for college cross-country what John Feinstein's A Season on the Brink did for college basketball.

    on Sundays to swim in a freezing reservoir and spending her Saturday nights unshowered and covered in mud in a pub, she would have spat out her champagne. But when everyone around you starts settling down, what else is a glamorous party girl to do but to launch herself into the world of endurance sport? For someone who didn't even own a pair of flat shoes (and definitely no waterproofs), Helen would soon find she had a lot to learn. Join Helen on her hilarious and soul-searching journey as she swaps a life of cocktail bars and dating for the challenges and exhilaration of triathlons, trail runs, obstacle races, long-distance cycles and ocean swims... and sets herself the seemingly impossible goal of qualifying as a Team GB triathlete.