Derby Contenders

John Shirreffs

John Shirreffs trained 2005 Kentucky Derby winner Giacamo (50-1) to one of the biggest upsets in the history of the race. He also trained three time Female Older Horse champion and horse of the year Zenyatta, who was defeated only once in 20 starts.  He is the only trainer to train Breeders' Cup Classic and Ladies' Classic winners in the same year (Zenyatta, Life is Sweet).