Rebecca Rusch won her fourth straight Leadville Trail 100 Mountain Bike Race in August of 2012. In addition to three 24-hour solo mountain bike World Champion rainbow jerseys, Rusch is the 2010 World Champion for Master's XC mountain biking, the 2011 National XC single-speed champion, and a three-time national champion in 24-hour team mountain biking. She set a new female course record for the 142-mile Kokopelli Trail in 2013. Rusch won Idaho's Short Track state championship (twice), and a Cyclocross state title. An accomplished Nordic skier, she's won the Masters Cross Country Skiing World Championship, in addition to taking the top prize at Raid Gauloises Adventure Racing World Championships. Rebecca also organizes a series of female ride initiatives called the SRAM Gold Rusch Tour, an event that combines race & training clinics at major bike events, female media camps and an all girls MTB camp in her hometown of Ketchum, Idaho. Selene Yeager is a top-selling author and professional health and fitness writer who lives what she writes as a certified personal trainer, professional mountain bike racer, and triathlete. She has authored, co-authored, and contributed to more than two dozen books. She is a frequent contributor to Runner's World, Women's Health, and Shape magazines and dishes out training advice monthly as Bicycling magazine's "FitChick." She lives in Lehigh Valley, Pennsylvania. Mark Burnett is a reality television producer best known for his work on Survivor, The Apprentice, The Voice, Shark Tank, and The Sing Off.