2016 O'Reilly Auto Parts 300

The 2016 O'Reilly Auto Parts 300 was the sixth stock car race of the 2016 NASCAR Xfinity Series season and the 20th iteration of the event.

The track measures 1.5 miles (2.4 km) around and is banked 24 degrees in the turns, and is of the oval design, where the front straightaway juts outward slightly.

[2] Erik Jones, driving for Joe Gibbs Racing, would set the fastest time in the session, with a lap of 28.882 and an average speed of 186.968 miles per hour (300.896 km/h).

[3] The final practice session, sometimes known as Happy Hour, was held on Thursday, April 7, at 6:00 PM CST.

[2] Erik Jones, driving for Joe Gibbs Racing, would set the fastest time in the session, with a lap of 29.375 and an average speed of 183.830 miles per hour (295.846 km/h).