FORT WORTH, Texas -- At one point in Saturday's O'Reilly Auto Parts Challenge, NASCAR Nationwide Series points leader Austin Dillon was running in the middle of the pack and Sam Hornish Jr. wasn't even on the lead lap.They both finished in the top five, and that's exactly why they're the class of the Nationwide field, separated by just six points with a pair of races left as they each gun for their first series championship.Dillon's tire strategy involved saving a set for the end, but four cautions for a total of 19 laps didn't play into the team's game plan, leaving his No. ... More...