With just two races remaining to determine a Sprint Cup Series champion, the Chase shifts to the Phoenix International Raceway for Sunday's Kobalt Tools 500. Tony Stewart won his fourth race of the Chase last Sunday at the AAA Texas 500. Despite the win, Stewart still trails points-leader Carl Edwards by three points. Five-time defending Cup champ Jimmie Johnson sits 55 points back in sixth place. This year's fall race at Phoenix should be a very interesting one. The flat one-mile track has been repaved and reconfigured since the series' most recent visit in February.