Heidi Splete has been a runner since jr. high school, and she is has been an avid marathoner since 1992. She has completed more than 40 marathons, including 7 Boston Marathons. She is the author of 101 Marathon Tips and 101 Sports Apparel Tips in the Lifetips book series. She competed in cross country and track during high school and college. Heidi is a medical journalist and freelance writer on health and fitness topics.