The lowest final score for 72 holes at The British Open -20. It is currently held by two players: Henrik Stenson and Cameron Smith.
Henrik Stenson won the 2016 Open with a total score of -20. He shot (68-65-68-63, 264) at The Royal Troon.
His final round of 63 had also been tied for the lowest single 18-hole round in British Open history.
Cameron Smith won the 2022 Open at St Andrews also with a total score of -20. He shot (67-64-73-64, 268).
Updated: 9-Jul-2022 | Email feedback to this question