For Rookie and others who may have mised my point, the greatness of a racehorse, while partially related to its racing recorded, is much more re-enforced by its after retirement accomplishments. San Gold gives good indication of being the "Northern Dancer' of the Gold mining industry --- a fact that will only be confirmed over the next twenty years or so.
To end with a Wikipedia quote concluding its article on Northern Dancer ---" During the past forty years, a number of books have been written about Northern Dancer, with the latest two editions coming out in 2006. One, by respected pedigree authority Avalyn Hunter, author of "American Classic Pedigrees (1914-2002)," recounts how Northern Dancer and his sons have established a royal dynasty that has profoundly dominated the international bloodstock market."