The Chris Waller-trained Unforgotten has justified her favouritism for the ATC Australian Oaks with an authoritative win in the Group One race.

Beaten by Hiyaam in the Vinery Stakes over 2000m two weeks ago, Unforgotten reversed that result in the premier staying race for three-year-old fillies at Randwick.

Unforgotten reeled in Hiyaam at the 100m before forging clear, leaving the outsider Miss Admiration to fill the minor placing.

Credit: AAP