Jenny Hadfield

Coach Jenny Hadfield is the co-author of the best-selling Marathoning for Mortals, and the new Running for Mortals and Training for Mortals series. She earned a Bachelor's degree in Exercise Physiology, a Masters Degree in Exercise Science and is a certified coach and personal trainer. She writes a monthly column on running for Health Magazine, blogs for Runners World and has written for many other publications.

Coach Jenny is co-owner of Chicago Endurance Sports, Chicago's largest multi-sport training company. Jenny is an accomplished endurance athlete and has competed in adventure races all over the world. She is a Boston Marathon qualified runner and veteran of over 35 marathons.

Jenny began her running career struggling to get down the street. Step by step, she trained, raced and became a top-ranked endurance athlete. Her unique coaching style draws from her struggles to get started as well as her impressive racing experiences. She coaches a myriad of runners and walkers of all levels.