SAN ANTONIO -- It's time for the 2nd annual Rock 'n' Roll San Antonio Marathon & Half Marathon.
More than 31,000 runners and walkers have signed up to participate in Sunday's race, including San Antonio Mayor Julian Castro.
Live bands will be performing along every mile of the 26.2-mile course and cheer squads will be on hand to keep everyone going.
The event is the largest marathon and half-marathon in Texas.
CLICK HERE to go to the Rock 'n' Roll Marathon Web site.
