an on-on-one adviser who helps you pump more satisfaction in your life, an unfailingly positive champion, a confidant, teacher, sounding board, and a good friend all rolled into one

a person who helps you realize what your goals are, and then helps you to attain those goals

a professional trained in the physiology, biomechanics, psychology, and nutrition of endurance training and racing

a professional who is trained in assisting people to set and achieve specific goals