Besides obviously Zenyatta which horse or horses can win it with a BC win? Does Workforce have an outside chance with a Turf win if an outsider wins the Classic?
No. Not off one American race. All Along won three times in NA in '83, all races coming after the Arc.
Horses with a chance with a Classic win....QR, Blame, and Lucky. Paddy and Haynesfield might get some votes but I can't see them winning. .