Johnny Miller was the first golfer to shoot 63 in a major and was the only golfer to shoot 63 in the final round to win a major until Henrik Stenson did so as well during the 2016 Open Championship at Royal Troon Golf Club.
Johnny Miller was the first golfer to shoot 63 in a major and remains the only golfer to shoot 63 in the final round to win a major. The most recent golfers to shoot 63 in a major were Phil Mickelson and Henrik Stenson, both at the 2016 Open Championship at Royal Troon Golf Club.