Who shot the lowest single round in Open Championship history?

Branden Grace shot the lowest single round in Open Championship history.

Grace made history during the third round of the 2017 Open Championship at Royal Birkdale Golf Club in Southport, England. He carded a 62, eight under par, becoming the first player to shoot 62 in any men’s major championship. His score included eight birdies and no bogeys.

The round was especially significant because major championships are played under demanding conditions on highly defended courses. Grace’s 62 broke the previous Open Championship low-round mark of 63, which had been recorded by several players. Although the round put him into contention, he ultimately finished tied for sixth, while Jordan Spieth won the championship.

The question refers specifically to a single round, not the lowest four-round aggregate or the largest winning margin. The Open’s record books can also be confused with other major-championship statistics, since 62 is now the benchmark for the lowest round in men’s major history. Grace was the first to reach it, but other players have since matched the score.