Brian Vickers has the fastest practice speed during practice 2 of 188.950 mph for the 2014 NASCAR Cup Series Kobalt Tools 400 at Las Vegas Motor Speedway.
The practice speeds table shows the fastest lap during practices.
|Driver||From Lap||To Lap||Average Speed|
|Dale Earnhardt Jr.||21||30||184.598|
|Ricky Stenhouse Jr.||1||10||182.914|
Cars must run 10 consecutive laps on the track to be included in this table.