Four drivers have a mathematical chance of locking up Chase berths. Traditionally, Michigan is the scene of the first driver Chase clinch. Every Chase year (2004-Present) except 2004 and 2006 has seen a driver clinch a spot at Michigan. Kevin Harvick did it last year, and could do it again in 2011. Leaving this weekend, a clinching driver has to have a 145-point lead over 11th place. Those who can mathematically clinch this weekend: #18-Kyle Busch, #99-Carl Edwards,#48- Jimmie Johnson and #29-Kevin Harvick. Busch and Edwards are currently 118 points ahead of 11th. Johnson is 112 and Harvick is 104. Then thereÂs a Wild Card clinch possibility: If Kyle Busch or Harvick win this weekend, either driver will have four victories, which will lock them into the Chase as at least one of the Wild Card spots.(NASCAR)(8-19-2011)
