The O'Dea/Hoysted-trained mare put the writing on the wall when running for second last start at Eagle Farm.
Santero races well at the mile with two wins and two placings from six attempts and the last performance suggested she is looking for it now.
She will be at her peak fourth up and gets the services of James Orman.
David Vandyke's Whitewater finds a winnable assignment later on the program.
The gelding sat on pace when resuming and stuck on until his condition gave out late.
He has won second up before so will be fitter for that hitout and he looks suited in this grade.
BRISBANE BEST
BET OF THE DAY: Race 5 #9 Santero @ $3.50
EACH WAY PLAY: Race 8 #7 Whitewater @ $6.50