Bryson DeChambeau might have cost himself a chance at winning another major on the first day of the 153rd Open Championship. DeChambeau is the most prominent golfer in danger of missing the projected cut line as the second round of the 2025 British Open continues Friday at Royal Portrush Golf Club in Northern Ireland.

The Open returned to Royal Portrush in 2019 when Irishman Shane Lowry won his first major title, and the only one of his career thus far. His 15-under winning score was six strokes ahead of the runner-up, Tommy Fleetwood. Lowry became the second Irishman after Pádraig Harrington's two Open wins.