Winx had to overcome a tough three wide run and sustained a long run from the 800m when Hugh Bowman chose to put the pressure on her rival runners.
Directly on the Emirates, Waller added: "Whether she has another run this prep, when she goes overseas - if she goes overseas - it'll all unfold and be pretty obvious I would say".
Winx recorded a new track record for the 2040m journey with a winning time of 2:02.94, which was four one hundredths of a second faster than the 2:02.98 she set in winning her first Ladbrokes Cox Plate in 2015.
"She will be recognised as one of the greatest horses to grace the Australian turf and to be a part of her career, I can't explain how much that means". To think that she's emulated the great, you know?
"She hasn't beaten his record, and equalling it I think is a great thing".
Waller said while her greatness is heralded by 26 wins, over $15.6million in stakes, and 15 Group 1 successes, he said she recovers like a superior horse, too.
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Winx began to improve her position from the 900m and had the lead on the turn with Humidor the only horse giving chase.
Winx's trainer Chris Waller congratulated Humidor for running "a very good horse" so close.
"I was concerned for a moment down the straight but she is Winx", he said.
Former jockey Malcolm Johnston is not sad Winx has reached Kingston Town's record of three Cox Plates.
"Fortunately we got the upper hand and yeah, well done to the connections of all runners".
Racing NSW and the Australian Turf Club have also pitched the idea of Winx racing in next year's The Everest - Waller holds a slot in the $10million race - as the pursuit to host global racing's most marketable asset heats up. But trying to compare one horse to another, they're all different.
The mare started the race as the shortest Cox Plate favourite since Phar Lap in 1931. "We would love to have her".