Kyle Busch has the best 10-lap consecutive average speed in Happy Hour practice for the Sprint Cup Kobalt Tools 400 at Las Vegas Motor Speedway.
His average speed of 185.647 mph in the No. 18 Toyota Camry was best of the 20 cars that ran 10 consecutive laps on the track for this final practice session. No. 55 Mark Martin, No. 29 Kevin Harvick, No. 56 Martin Truex Jr. and No. 27 Paul Menard were the rest of the top five on this list.