After the quintet of thrilling Group 1 contests this week at Royal Ascot, Saturday sees a triple treat as the G1 St James's Palace S., G1 Coronation S. and G1 Diamond Jubilee S. provide the ultimate closing act. It is the St James's Palace which entices the most, with the May 6 G1 2,000 Guineas second and third Wichita (Ire) (No Nay Never) and Pinatubo (Ire) (Shamardal) re-enacting their Classic encounter as TDN Rising Star Palace Pier (GB) (Kingman {GB}) joining in for good measure. On last year's form,...