LOUISVILLE, Ky. – As the field turned into the stretch, trainer Chad Brown had every right to believe he was finally going to get his first Kentucky Derby victory late Saturday afternoon at Churchill Downs, as his Blue Grass winner Zandon loomed up in perfect striking position just behind the favored Epicenter. It was a scenario he had experienced twice before, with Normandy Invasion in 2013 and again with Good Magic five years later, both of whom also appeared poised to win the Derby a quarter-mile from the wire.