Bart Yasso is the chief running officer of Runner's World magazine. He has completed more than 1,000 races, triathlons, biathlons, and eco-challenges over the past twenty-five years. In 2007 he was inducted into the Running USA Hall of Champions in recognition of his contribution, impact, and dedication to the sport. He lives in Center Valley, Pennsylvania.

Kathleen Parrish is an award-winning writer and special projects reporter at The Morning Call in Pennsylvania and freelance writer for Better Homes and Gardens magazine. She lives in Bethlehem Township, Pennsylvania.