Bobby Jones’ victory at The Open at Hoylake in 1930 was the second leg of his Grand Slam.
He remains the only player to have won the Open and Amateur Championships of Britain and America in the same year.
He was 28 years old and promptly retired from competitive golf except for later playing in his own tournament at Augusta National.
Jones set out to win all four majors that year but to do so he had to triumph at the British Amateur for the first time, which he achieved at St Andrews, scene of his second Open title in 1927.
At Hoylake he became the only amateur to win The Open three times and only the second player after John Ball in 1890 to win the Open and Amateur in the same year.
Jones shared the lead after both the first two rounds with scores of 70 and 72 but a 74 in the third round dropped him one behind Archie Compston, who had a 68.
But Compston slumped to an 82 in the final round and Jones returned a 75 to win by two strokes from Leo Diegel, who was third the previous year, and Macdonald Smith, one of the best players never to win a major.
Fred Robson was the leading home player in fourth place alongside another American, Horton Smith.
Jones had settled himself on the back nine after suffering a seven at the eighth hole when he had taken five strokes from just short of the green.
He called it the “most inexcusable hole I have ever played”. But at the 16th he played a delicate bunker shot inches from the hole to claim a vital four.
Jones went on to win the US Open at Interlachen, when Macdonald Smith was runner-up again, and then the US Amateur at Merion to complete his crowning glory.