In the modern era, Rory McIlroy holds the four-day record with a total score of 268 while winning the 2011 US Open at the Congressional Country Club in Bethesda, Maryland. On a to-par basis, McIlroy’s -16 at that event is tied for the all-time lead with Brooks Koepka, who posted the same score while winning the 2017 US Open at Erin Hills in Wisconsin.