About the Author

Budd Coates has an MS in physical education/exercise physiology and is a Runner's World Coach, a 2-13 marathoner, and a four-time qualifier for the US Marathon Olympic Trials. He lives in Emmaus, PA.

Claire Kowalchik is the author of The Complete Book of Running for Women and a writer/editor with twenty-plus years of experience. She lives in Emmaus, PA.