The 2013 U.S. Cellular 250 presented by the Enlist Weed Control System was the 20th stock car race of the 2013 NASCAR Nationwide Series and the second iteration of the event. The race was held on Saturday, August 3, 2013, in Newton, Iowa at Iowa Speedway, a 7⁄8 mile (1.4 km) permanent D-shaped oval racetrack. The race took the scheduled 250 laps to complete. At race's end, Brad Keselowski, driving for Penske Racing, would pull away on the final restart with 35 to go to win his 23rd NASCAR Nationwide Series win and his third win of the season. To fill out the podium, Sam Hornish Jr. of Penske Racing and Brian Vickers of Joe Gibbs Racing would finish second and third, respectively.