Brad Keselowski posted the fastest single lap in final practice for Sunday’s Overton’s 400 at Chicagoland Speedway (2:30 p.m. ET, NBCSN) with a speed of 180.826 mph. His average speed was sixth quickest at 170.369 mph during a 30-lap run.
He beat last year’s Chicagoland winner Martin Truex Jr. (180.656 mph) by .028 seconds. Truex had the quickest average speed of 170.887 mph that was set during a 25-lap run.
Joey Logano (180.288 mph), Kurt Busch (179.671) and Aric Almirola (178.832) rounded out the top five.
Chase Elliott had the second quickest average speed of 170.668 mph that was set during a 15-lap run.
Kevin Harvick (170.625) was third in regard to average speed during a 28-lap run.