Updated on 09/17/2011 11:03AM

Etc. . . .

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Eddie Castro, an apprentice rider, rode five winners Friday at Calder, winning the third, fourth, sixth, seventh, and ninth races. It was the second time in a week Castro had five winning mounts on a Calder card. . . . The World Series Racing Championships, without a sponsor since Emirates Airlines withdrew after the 2001 series, has entered into a partnership with Rolls-Royce Motor Cars Ltd. The partnership begins with Saturday's King George VI and Queen Elizabeth Diamond Stakes at Ascot and will also include selected events in the series.