Just as James Cummings is adamant a moment's hesitation cost Norzita a last-start Group One win, he is almost as certain the filly can deliver at the same level on Saturday.

Norzita ended up on the wrong end of a three-way finish in the Coolmore Classic but the agonising defeat only confirmed her credentials for an autumn finale that will be shaped after the Vinery Stud Stakes at Rosehill.

"Winning Group Ones is about the theatre of it all and your horse has to do everything right," Cummings, stable foreman for his grandfather Bart, said.

"Unfortunately she was a little tardy away.

"She was beaten a nose and a nose and it's fair to say her efforts were reflected in the Doncaster markets where's she's ahead of the two horses who finished in front of her."

Norzita returns to racing her own age group on Saturday as she steps out over 2000m for the first time in a career which has already delivered a Group One win.

She won the Flight Stakes on a slow track during the Sydney spring carnival, a result that carries extra significance going into a meeting tipped to be run on rain-affected ground.

"She's franked her Flight Stakes win with a massive run at Group One level at 1500 metres and she's ready to jump out of the ground on Saturday," Cummings said.

Part of a premium book of Golden Slipper day rides for Hugh Bowman, Norzita holds down Vinery favouritism at $2.80.

Her main rivals include Habibi, the last-start New Zealand Derby winner who arrives in Australia with six wins in seven starts.