Iowa heat race fields to be determined by one practice
Qualification groups will be determined by lap times recorded by entries on the .875-mile oval in the second (45-minute) practice session (3:30 p.m. ET). Qualifications are scheduled for 7:15 p.m. (ET).
Race 1 will consist of the even-numbered positions, starting with the 10th-quickest practice time, and determine the even-numbered positions in the starting field from 10th down.
Race 2 will consist of the odd-numbered positions, starting with the ninth-quickest practice time, and determine the odd-numbered positions in the starting field from ninth down.
Race 3 will consist of drivers ranked one through eight from the practice. Results of Race 3 will determine the first four rows, with the winner taking the pole position.