Brad Keselowski is the leader in the Sprint Cup point standings for the first time in his career after winning Sunday's Geico 400 at Chicagoland Speedway.  Keselowski moved ahead of Jimmie Johnson, who finished second after starting on the pole and leading for 172 of the 267 laps.  Kasey Kahne [[ Cane ]] was third, followed by Kyle Busch and Ryan Newman.  Keselowski took the lead for good with 26 laps to go and won by 3.17 seconds.  It was his fourth win of the season and eighth of his career.  It was the first event in the ten-race "Chase for the Sprint Cup" championship.  The series moves to Loudon for next Sunday's Sylvania 300 at New Hampshire Motor Speedway.