Meb Keflezighi's victory at the 2014 Boston Marathon made him the first American man to win the race in 31 years. He's won more than a dozen national titles and is a three-time US Olympian. Meb is also the founder of the MEB Foundation, which funds programs that promote fitness and other positive lifestyle choices for children. He lives in San Diego, CA.
Scott Douglas is senior content editor for the website RunnersWorld. He is the author or coauthor of six other running books. He lives in South Portland, ME.