Sean Brosnan is a two-time national high school coach of the year who built the Newbury Park High School distance squads into an award-winning national powerhouse. In addition to national championships, he led Newbury Park to boys state championships in 2018, 2019, and 2021 and a girls title in 2019. A native of Long Island, Brosnan broke into coaching as a volunteer at Queens University of Charlotte, where he helped coach athletes who won multiple NCAA individual titles. Brosnan lives in Big Bear, California, where he coaches a professional running team.