Cox Plate winner Adelaide is unlikely to be seen before next month's Queen Elizabeth Stakes.

English jockey Ryan Moore rode Adelaide in a track gallop at Rosehill on Tuesday morning in which the horse was beaten by Catkins.

Tentative plans to run him in Saturday's George Ryder Stakes will be shelved with James Bester, representing owners Coolmore, saying they believed it was unnecessary.

"The final decision will be down to the trainer Chris Waller but it's highly unlikely he will run in the George Ryder," Bester said.

"He doesn't need a race to bring him on for the Queen Elizabeth.

"Ryan was delighted with his gallop this morning. He was up against a horse who was beaten a nose in a 1300 metre Group One last start so you would expect her to be in front.

"He is a naturally clean winded horse and the George Ryder would have just been a preparatory race and he doesn't need it."

The $4 million Queen Elizabeth Stakes (2000m) on April 11 is the pinnacle of The Championships at Randwick.

Moore, who won the Cox Plate on Adelaide and the Melbourne Cup on Protectionist, will ride Odyssey Moon in Saturday's $3.5 million Golden Slipper.

Much of the George Ryder attention will now be on the Japanese visitors World Ace and Real Impact.

Irish horse Gordon Lord Byron won the Group One race last year.