The 1947 U.S. Open was the 47th U.S. Open, held June 12–15 at St. Louis Country Club in Ladue, Missouri, a suburb west of St. Louis. Lew Worsham denied Sam Snead his elusive U.S. Open title by prevailing in an 18-hole playoff. For Snead, it was his second of four career runner-up finishes at the Open. In the third round, amateur James McHale tied the tournament record with a 65, and he established a new nine-hole record with a 30 on the front nine. That mark was equaled fifteen times before it was broken in 1995 by Neal Lancaster, who carded a 29 on the back nine in the final round.