never say die (1951–1975) was an american-bred, british-trained thoroughbred racehorse. after winning only once from his first nine races, he demonstrated much improved form in the summer of 1954 to win the derby, becoming the first american colt to win the race in seventy-three years. later that year he added a second british classic when winning the st. leger stakes by a record margin of twelve lengths. he was later retired to a successful stud career.