.927 ‘Â The average margin of victory, in seconds, in NASCAR Sprint Cup competition. 4 ‘Â Races that have had a margin of victory under one second. 12 ‘Â Average number of different leaders this season. 30 ‘Â Average number of lead changes. 33 ‘Â Number of different drivers who have led at least one lap. 113.4 ‘Â Jimmie Johnson’s series-best Driver Rating. Only three drivers have a Driver Rating over 100.0 (Kurt Busch, 105.9; Jeff Gordon, 104.9). 53.9 ‘Â Percentage of cars that have finished on the lead lap. At the end of 2009, a NASCAR Sprint Cup record 51.9% of the cars finished on the lead lap. 796 ‘Â Number of passes by Kyle Busch, most in the series.(NASCAR)(4-1-2010)
