Millbrook’s track program allows dedicated runners to train at a high level in both the fall and spring seasons. The program aims to instill a lifelong passion for running. In addition to on-site speed and strength training, Millbrook uses the tracks at local high schools for practices. The team participates in meets against a wide array of both large and small schools from the New England Prep School Athletic Conference. At the conclusion of the season, the team competes in the Division III New England championship meet.