The 2010 United States Open Championship was the 110th U.S. Open, held June 17–20 in Pebble Beach, California. Graeme McDowell of Northern Ireland won his first major title, one stroke ahead of runner-up Grégory Havret of France. McDowell was the first European to win the U.S. Open in forty years, since Tony Jacklin of England won in 1970, which started a period in which four out of five U.S. Open champions between 2010-14 were European. This was the fifth U.S. Open to be played at Pebble Beach Golf Links (it also hosted in 2000, 1992, 1982, and 1972).