Aidan O'Brien takes 15th Group One race of the season
Duke of Marmalade's win at Ascot and Mastercraftsman's at The Curragh this weekend takes Aidan O'Brien's Group One win tally to 15 this season
Aidan O’Brien
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King George VI and Queen Elizabeth Stakes
Aidan O'Brien picks up his second win in the King George VI and Queen Elizabeth Stakes at Ascot
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Budweiser Irish Derby: 1-2-3 for Aidan O'Brien
Aidan O'Brien achieved his second 1-2-3 in two weeks at The Curragh, when Soldier Of Fortune won the Budweiser Irish Derby
