2018 Alsco 300 (Kentucky)

The 2018 Alsco 300 was the 17th stock car race of the 2018 NASCAR Xfinity Series season and the 18th iteration of the event.

The first practice session was held on Thursday, July 12, at 4:05 PM EST, and would last for 45 minutes.

[2] John Hunter Nemechek of Chip Ganassi Racing would set the fastest time in the session, with a lap of 29.853 and an average speed of 180.886 miles per hour (291.108 km/h).

[3] The second and final practice session, sometimes referred to as Happy Hour, was held on Thursday, July 12, at 6:05 PM EST, and would last for 45 minutes.

[2] Ty Majeski of Roush Fenway Racing would set the fastest time in the session, with a lap of 29.717 and an average speed of 181.714 miles per hour (292.440 km/h).