The Alamo Series is a collaboration of the San Antonio running community, providing a progression of high-quality races to prepare local athletes for the San Antonio Rock 'n' Roll Marathon in November. The series is comprised of nine races between April and October, each with varying distances, providing an ideal dovetail for individual and group training schedules. Participation is tracked for all races in the series, and athletes who complete seven or more are eligible for awards at the series conclusion.