Phil Mickelson, born June 16, 1970, nicknamed Lefty, is an American professional golfer. He has won 45 events on the PGA Tour, including six major championships: three Masters titles (2004, 2006, 2010), two PGA Championships (2005, 2021), and one Open Championship (2013). With his win at the 2021 PGA Championship, Mickelson became the oldest major championship winner in history at the age of 50 years, 11 months and 7 days old. Mickelson is one of 17 players in the history of golf to win at least three of the four majors. He has won every major except the U.S. Open, in which he has finished runner-up a record six times.