1971 Official US Open Golf Programme: 71st Open Championship 17-20 June played at Merion Golf Club. Lee Trevino, the 1968 champion, won his second US Open, defeating Jack Nicklaus by three strokes in an 18-hole playoff. It was the second of Trevino's six major titles and the second of four times in which Nicklaus was the runner-up to Trevino in a major; Nicklaus won his third US Open the following year - clean throughout