1968, the year that "Sir Ivor" trained by Vincent O'Brien and ridden by Lester Piggott won the "Two Thousand Guineas", "The Derby", "The Champion Stakes" and the "Washington, D.C. International" to become United Kingdom "Horse of the Year".
1968, the year that "Sir Ivor" trained by Vincent O'Brien and ridden by Lester Piggott won the "Two Thousand Guineas", "The Derby", "The Champion Stakes" and the "Washington, D.C. International" to become United Kingdom "Horse of the Year".
