Black Caviar races against the clock

Updated 5:50 AM ET, Sat April 13, 2013
Black Caviar 25 SydneyBlack Caviar 25 Sydney
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Luke Nolan rides Black Caviar to her 25th consecutive win at Royal Randwick Racecourse on April 13 in Sydney, Australia. Mark Kolbe/Getty Images
Saturday's race in Sydney was only the fourth on a clockwise track for the Melbourne mare, better used to racing in an anti-clockwise direction in her native Victoria. Scott Barbour/Getty Images
Black Caviar has only raced on a clockwise track three times -- at the 2011 TJ Smith Stakes, Queensland's BTC Cup, and Britain's Royal Ascot (pictured). She may return to Ascot this year, said co-owner Colin Madden. Alan Crowhurst/Getty Images/File
The world champion sprinter, worth $7.5 million in prize money, has become a celebrity in her native Australia, earning the title of 2012 Sportswoman of the Year. Alan Crowhurst/Getty Images/File
Such is Black Caviar's cult status, she has appeared on the cover of Vogue, released a best-selling biography, and attracted more than 32,000 twitter followers. Courtesy Vogue Australia
"Her future has nothing to do with winning or losing on Saturday -- it's about how well she runs. It's about her personal performance. We want to give her the love and respect she deserves, which means retiring her at an appropriate time," said co-owner Colin Madden. Regi Varghese/Getty Images/File
Beyond the track, Black Caviar may also have a profitable career as a breeding mare, with Madden hinting champion British thoroughbred, Frankel (pictured), could be a good match. Tom Dulat/Getty Images/File