Unlike Pharoah-phever a year ago, Nyquist-mania hasn't yet struck in the days leading to the Kentucky Derby. It might by next Saturday night if the undefeated colt ends up in the winner's circle at Churchill Downs.American Pharoah came into the Derby off rousing wins in two races in Arkansas, then won the Derby as the favorite and went on to become racing's first Triple Crown winner in 37 years.