The Northern Irish golfer criticized Bryson DeChambeau’s actions at the major championship in the historic venue. McIlroy called a penalty against DeChambeau "clearly evident". McIlroy later invited DeChambeau to his tournament in Doonbeg, despite past friction. New Zealand's Ryan Fox claimed the title with a final-hole birdie at the coastal course. Fox set a temporary record that another competitor later exceeded with a 54-hole advantage during the event. Cameron Young topped the scoring chart as the day’s clubhouse starter at the Open.