Russian Emperor is the highest-rated horse in the Group 1, $1.3 million Standard Chartered Champions and Chater Cup, the featured sixth race Sunday at Sha Tin. The 5-year-old Irish import, by the great stallion Galileo, has been running in important Hong Kong races for about 15 months now and has raced effectively from 1,600 meters, about one mile, to 2,000 meters.