The Gran Premio San Isidro - Copa Dr. Melchor Ángel Posse is a Group 1 thoroughbred horse race run at Hipódromo de San Isidro in Buenos Aires, Argentina, open to horses three-years-old and older. It is run over a distance of on the turf.
History.
The Gran Premio San Isidro has been run as a Group 1 race since 1981. The Gran Premio 25 de Mayo was known as the Premio San Isidro or Gran Premio San Isidro until 1959.
Records since 1988.
Speed record:
Greatest winning margin:
Most wins:
Most wins by a jockey:
Most wins by a trainer:
Most wins by an owner:
Most wins by a breeder:
Winners since 1988.
ƒ indicates a filly/mare