 Green flag pit stops began on the 152nd lap ; Kenseth made his pit stop on the same lap . Johnson and Biffle made a pit stop the next lap , handing the lead to Jeff Gordon . After pit stops , Biffle reclaimed the first position . On lap 157 , Elliott Sadler spun out , causing the second caution . None of the leaders elected to pit under the caution . The race restarted on lap 162 with Biffle in the lead , ahead of Kenseth and Jeff Gordon . By the 190th lap , Biffle 's lead was three seconds . 
