Dr. Kimball is the President of GTK Sports, one of the leading sport psychology consulting firms in New England. He is a certified sport psychology consultant with the Association for Applied Sport Psychology and an adjunct professor of sport psychology at several Universities and Colleges in Boston. Dr. Kimball consults with an array of Olympic, professional, collegiate, youth, and recreational athletes and serves as the sport psychology coach for several high-performance junior tennis academies and a premier golf instruction facility.

An avid runner, Dr. Kimball has completed 6 marathons, served as Head Coach for Boston Marathon Charity Teams, consults for numerous endurance training groups in Boston, and recently published his first book “Grateful Running: Mental Training for the Long Distance Runner.”