Progressive filly Egg Tart will be on trial for a Group One assignment when she has her first anti-clockwise start at Flemington.

If she handles the opposite direction on Tuesday as well as she has her Sydney assignments, Egg Tart could head to the Schweppes Oaks at Morphettville in Adelaide on May 6.

She also has the Brisbane carnival in her sights with trainer Chris Waller keeping all options open.

"She is going to Melbourne to see how she goes left handed and then we will decide," Waller said.

"There's the Group One in Adelaide over the 2000 metres and I wouldn't rule out Brisbane."

Waller scratched Egg Tart from the 1600m-race for three-year-olds at Randwick on Saturday won by her stablemate Oklahoma Girl from another Waller-trained runner Sizzling Bullet.

"We scratched her to run at Flemington because were are trying to keep our three-year-olds apart," Waller said.

"We have quite a few we want to get to the Brisbane carnival."

The Mike Moroney-trained Milwaukee holds favouritism at $3.80 over Egg Tart ($4.50) in the Auckland Racing Club Trophy (1600m).

Egg Tart, who has won three of her five starts, will be ridden by Damien Oliver.