Kevin Harvick has the fastest practice speed during practice 1 of 190.772 mph for the 2015 NASCAR Cup Series SpongeBob SquarePants 400 at Kansas Speedway.
The practice speeds table shows the fastest lap during practices.
|Driver||From Lap||To Lap||Average Speed|
|Dale Earnhardt Jr||34||43||184.678|
Cars must run 10 consecutive laps on the track to be included in this table.