During his Quadruple Crown run, as well as the Gran Premio Carlos Pellegrini, Santorín was ridden by jockey Arthuro Morales. Santorín was the favorite in the
Polla de Potrillos, a race he won from Parnasus by 2.5 lengths in 1:36. He won both the
Clásico Ricardo Ortiz de Zevallos and
Derby Nacional by 15 lengths each. In the
Gran Premio Carlos Pellegrini, Santorín ran towards the back of the field for much of the running. About 2000 meters into the 3000 meter race, he began to move forward and was at the front by the time the field entered the homestretch. Santorín separated from the rest of the field about 300 meters from the finish line and drew off to win by 13 lengths. '', stated by Peruvian television personality during this race, became a well-known phrase. Following the Pellegrini win, Santorín was imported to the United States as Santorín II. He was "entered in, and withdrawn from, virtually every stakes run in Florida" during the first three months of 1974, due to a fever. In his first race in the United States, the
Grade 1 Widener Handicap, he was assigned 119 pounds, and was unplaced. The following month, he ran in the Grade 2 Hialeah Turf Cup Handicap, carrying 116 pounds and finishing third, despite being bothered in the stretch. == Race record ==