Racing returned to Hong Kong on Sunday, with world-class performances on and off the track, a crowd packed with travelling supporters, and an occasion the city’s leader called a “unique cultural icon”. Some 12,280 visitors, 74 per cent more than last year, made the trip to Sha Tin Racecourse to watch superstar Aaron Kwok Fu-shing get things under way, before Ka Ying Rising powered to a record-extending 21st straight win. The world’s best sprinter took home the HKSAR Chief Executive’s Cup in...