Invincibella has shown how much she's improved following her winless Brisbane campaign by finishing strongly to claim The Star Mile at Randwick.
Sydney trainer Chris Waller sent the four-year-old north in May-June for a three-race schedule culminating in a sixth in the Group One Queensland Oaks.
"She's come back a better horse. A trip will really make a horse mature," Waller said.
"She's never been far away earlier in her career. She's really put it together now."
Invincibella resumed successfully in late September in a 1300m benchmark handicap at Rosehill and has comfortably stepped up in class and distance.
"She's gone up a grade today and taken on some better horses with a light weight (53.5kg) and she showed plenty of acceleration at the finish," Waller said.
Invincibella, the $2.70 favourite, powered clear under Tim Clark at the 100m mark to leave pacesetter Lubiton ($6) to settle for second a length back.
Harper's Choice (8.50) was a neck further back in third.
Waller said Invincibella would prepare for a fillies and mares mile at Moonee Valley on Cox Plate day.
The Group One Myer Classic on November 4 was not a likely option.
"Hopefully Egg Tart, Fox Play and Egg Tart will fly the flag there but she'll be perfect for the race in two weeks time," Waller said.