2023 U.S. Open (golf) The United States Open Championship, commonly known as the U.S. Open, is the annual open national championship of golf in the United States. It is the third of the four men's major golf championships, and is on the official schedule of both the PGA Tour and the European Tour. Since 1898 the competition has been 72 holes of ...
https://en.wikipedia.org/wiki/U.S._Open_(golf)