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 25 years. He has run a majority of American marathons and at least one on all seven continents. In 2007 he was inducted into the Running USA Hall of Champions in recognition of his contribution, impact, and dedication to the sport.
KATHLEEN PARRISH is an award-winning writer and former special projects reporter at The Morning Call in Pennsylvania and a freelance writer for Better Homes and Gardens magazine.