The Andrew Balding-trained Chaldean has been retired to stand at Juddmonte's Banstead Manor Stud.
The son of Frankel arrived unbeaten entering his three-year-old campaign with notable successes as a juvenile including the Acomb Stakes at York, the Champagne Stakes at Doncaster and the Group 1 Dewhurst Stakes on Newmarket's Rowley Mile.
Chaldean's reappearance effort in the Greenham Stakes at Newbury hardly went to plan with the Juddmonte-owned colt unseating jockey Frankie Dettori soon after exiting the stalls.
He bounced back to show his true class on the biggest stage when ploughing through the mud to claim Classic glory in the 2023 2000 Guineas at Newmarket in May.
Chaldean subsequently chased home four-time Group 1-winner Paddington in the St James's Palace Stakes at Royal Ascot, before disappointing in the Prix Jean Prat at Deauville a month later.
The three-year-old struggled when only beating one horse home in the Queen Elizabeth II Stakes at Ascot on Saturday. It would be his final appearance on a racecourse.
Balding said: "Chaldean is just a dream horse; the most professional, uncomplicated, and beautifully balanced horse we have had during his time at Kingsclere.
"He showed unusual improvement through his unique sequence of prestigious wins in the Acomb Stakes, Champagne Stakes and the Dewhurst Stakes at two-years-old only to improve again to win the 2000 Guineas before his turning three years old."
General manager of Juddmonte UK, Simon Mockridge, added: "We would like to extend special thanks to Andrew Balding and the teams at Kingsclere and Juddmonte for guiding and skilfully developing the racing career of Chaldean.
"We look forward to welcoming our Classic winner Chaldean as the first son of Frankel to stand at Banstead Manor Stud, further strengthening Juddmonte's European stallion roster."
