The 2011 United States Open Championship was the 111th U.S. Open, played June 16–19 at Congressional Country Club in Bethesda, Maryland, a suburb northwest of Washington, D.C. Rory McIlroy won his first major title, eight strokes ahead of Jason Day. He set eleven U.S. Open records on the weekend, including the lowest total 72-hole score (268) and the lowest total under par (−16). McIlroy and Robert Garrigus became the fifth and sixth in U.S. Open history to score under par in all four rounds. U.S. Open 2011: June 16–19, 2011 at Congressional Country Club Blue Course. Champion: Rory McIlroy, at 268 (−16). Wiki link