Like most owners, Joe Sutton asks only for a level playing field, which is why he is still trying to make sense of the fact that Blackberry Wine (Oxbow) will be allowed to run in Saturday's fourth race at Oaklawn against his colt Scabbard (More Than Ready). Blackberry Wine has crossed the wire first on three occasions, but, so far as his official record goes, only one counts. He was disqualified from purse money in two of his starts after testing positive for the drug levamisole. Because of the demotions,...