Two to go in the 2013 NASCAR Nationwide Series title race and the favorite in the championship battle is still undecided. Austin Dillon leads Sam Hornish Jr. by a mere six points. This weekend’s race at Phoenix International Raceway could be Hornish’s best and last chance to close the gap. Hornish has one victory (2011) and three top-10 finishes in six starts at the one-mile tri-oval.