sentences:  In a closely contested finish, Roberto won by a short head.This victory, which was only confirmed after a stewards' enquiry, was poorly received by the crowd, many of whom felt that Williamson had been unfairly deprived of the ride.The victory made John Galbreath the first person to own winners of both the English and American Derbys, since he had also won the 1963 Kentucky Derby with Chateaugay and the 1967 Kentucky Derby with Proud Clarion.