Frankie Dettori took his awesome personal tally to 73 winners at Royal Ascot with a Group 1 double in the Coronation Stakes and St James's Palace Stakes and victory in the earlier Group 2 Queen Mary Stakes.

Having ridden Campanelle to victory in the Queen Mary, Dettori guided the Jessica Harrington-trained Alpine Star to success in the Coronation in fine style by an extended four lengths and then, just 35 minutes later, 4-1 Palace Pier shocked favourite Pinatubo in the St James's Palace.

However, Dettori just failed to make it a quadruple when Sceptical found Hello Youmzain and jockey Kevin Stott just too good in the Diamond Jubilee Stakes.