ScottBall_rock-n-roll-marathon-running-run-12-2-2018-3

Racers take off as the Rock 'n' Roll marathon begins.

Racers take off at the start of the 2018 Rock ‘n’ Roll Marathon in San Antonio. Credit: Scott Ball / San Antonio Report

Racers take off at the start of the 2018 Rock ‘n’ Roll Marathon in San Antonio.