He was bred and raced by Bull Hancock 's Claiborne Farm .
Nadir ( foaled March 15 , 1955 ) was a Thoroughbred racehorse who was one of two colts voted the American Champion Two - Year - Old Colt of 1957 .
American Champion Two - Year - Old Colt was bred and raced by Bull Hancock 's Claiborne Farm .
Nadir ( foaled March 15 , 1955 ) was a Thoroughbred racehorse who was one of two colts voted the American Champion Two - Year - Old Colt of 1957 .