John Hugheshas been an endurance cyclist since 1975, spending 15 of those years as a coach and trainer. For 12 years he served as the managing director of the UltraMarathon Cycling Association (UMCA), the founding organization of the transcontinental Race Across America (RAAM). As UMCA director, Hughes developed the popular century challenge, encouraging cyclists to ride 100 miles every month.Hughes has twice competed in RAAM and has twice won the Furnace Creek 508, a 508-mile RAAM qualifying event. Among his other accomplishments are seven 1,200-kilometer randonnées, including a course record for the Boston-Montreal-Boston route. For 10 years Hughes organized and led supported tours… of the West and Southwest. He also explored the West on self-supported tours on a loaded touring bike.Hughes has been certified as a USA Cycling sport coach and a National Strength and Conditioning Association personal trainer. Hughes has coached numerous riders, from people preparing for their first centuries to dozens of top RAAM finishers. He lives in Boulder, Colorado.Dan Kehlenbach has been coaching cyclists and other endurance athletes since 1995. He has certifications through USA Cycling as a level 2 coach and the National Strength and Conditioning Association as a strength and conditioning specialist (CSCS). He earned his master’s degree in sports medicine from the United States Sports Academy in Daphne, Alabama.Kehlenbach spent four years with the U.S. Coast Guard, serving as the strength and conditioning instructor for the recruit training program in Cape May, New Jersey. He also represented the Coast Guard in cycling races, duathlons, triathlons, and running events.As a contributing editor for UltraCycling, the official magazine of the UMCA, Kehlenbach wrote numerous articles on training and conditioning, specializing in articles that demystify the complexities of sport science.