2001 dual Derby winner Galileo has been rated inferior to his predecessor as Europen Champion three-year-old, Sinndar.
Both horses claimed victory in the Vodafone and Budweiser Irish Derbys, but Sinndar also added the Prix de l'Arc de Triomphe to his haul.
Galileo, trained by Aidan O'Brien, has been given a rating of 129 in the International Classifications announced today. And that is 3lb less than the Aga Khan's champion three-year-old colt of 2000.
Galileo is not the highest-rated three-year-old colt of 2001. That distinction goes to the American star Point Given, who has been handed a rating of 130.
Bob Baffert's charge listed two legs of the American Triple Crown - the Preakness Stakes and the Belmont Stakes - among his six successes last term until a leg injury forced his premature retirement.
Johannesburg, winner of the Breeders' Cup Juvenile, was confirmed as champion two-year-old of Europe with a rating of 126.
Aidan O'Brien's colt took the racing world by storm, last October, when becoming the first Irish trained winner of America's top two-year-old event.
O'Brien's Mozart (125) proved himself champion sprinter in Europe with Group One victories in the Darley July Cup and the Victor Chandler Nunthorpe Stakes.
Godolphin's Sakhee is the undisputed champion among the older horses with a rating of 133 - 4lb more than his stable companion Fantastic Light.