It's no secret Winx's rivals are lining up in the group one Chipping Norton Stakes at Randwick running for second, with a $56,000 bet underscoring her favouritism to claim a 15th successive victory.
The TAB estimated by Thursday the five-year-old mare accounted for 99.73 per cent of the betting in today's feature race, according to spokesman Gerard Middleton.
"It doesn't matter what price she is, punters just line up to back her like they did with Black Caviar," Middleton said.
"We've just taken a bet of $56,000, as well as $12,000, $10,000 and $8000, on Winx and we're expecting plenty more to come."
Although Winx is the $1.10 favourite trainer Chris Waller was taking nothing for granted after watching her round off preparations before dawn at Rosehill on Thursday.