 A four-car crash in the final lap of today's IndyCar Series race at Iowa Speedway injured driver Sting Ray Robb. Robb was injured when his car clipped the slower car of Alexander Rossi coming out of the second turn. Robb's car flipped twice, ending up on its top and slid down the backstretch. Kyle Kirkwood and Ed Carpenter were also involved in the crash, the Carpenter's car ending up on top of Kirkwood's.