1990 Event 90th U.S. Golf Open: Hale Irwin shoots a 280 at Medinah CC in Medinah Il 1975 Event 75th U.S. Golf Open: Lou Graham shoots a 287 at Medinah CC ILL 1949 Event 49th U.S. Golf Open: Cary Middlecoff shoots a 286 at Medinah CC ILL