Irish Derby: Santiago clinches Aidan O'Brien's 14th win in Curragh Classic
Jockey Seamie Heffernan secures his fourth Irish Derby triumph. Santiago won the Queen's Vase at Royal Ascot. The Authorized colt moved two furlongs down to win the mile-and-a-half Irish Classic. It was trainer Aidan O'Brien's 14th win in the Curragh Classic and he could be aiming for the St Leger next.