The BolderBOULDER, named “America’s All-Time Best 10K” by Runner’s World, is the 4th largest running event in the United States and the 7th largest in the world. On this episode of Hilary Topper on Air, Hilary will be speaking with the Race Director of the BolderBOULDER 10k, Cliff Bosley! This is a must listen for anyone interested in running, fitness, or what it takes to help plan the best 10K in America.