It's time for the Iowa 300 at Iowa Speedway. Watch today's race at 7 p.m. ET on NBCSN.
All of the action can be heard on the Advance Auto Parts INDYCAR Radio Network (radio) and SiriusXM Radio Channel 209.
Live timing and scoring, accompanied by Advance Auto Parts INDYCAR Radio Network commentary, is available on RaceControl.IndyCar.com.