From the time Autumn Boy entered the stables of champion trainer Chris Waller the colt appealed as a future Group 1 winner.

That big day arrived on Saturday when Autumn Boy emulated his sire The Autumn Sun, also prepared by Waller, to win the Group 1 Caulfield Guineas (1600m) and in the process become the first son of his sire to win at the highest level.

Providing Waller and jockey Damian Lane with back-to-back wins in the Guineas after Private Life’s win last year, Autumn Boy ($4.20) scored a three-quarter length win from Planet Red ($31) with Observer ($21) nearly two lengths away in third.

“We’re proud of all the horses that come through the stable, but when we’ve got champions like The Autumn Sun and we’ve got sons and daughters, it’s pretty special,” Waller said.

“Last week, Autu

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