• In 1917 during World War I, the US open was called the Patriotic Tournament
  • The U.S. Open is the only Slam event to have been played on all 3 surfaces.
  • It`s the first of the 4 majors to introduce equal prize money for men and women.
  • Men`s and women`s singles champions will earn $3 million, a record payout.
  • Billie Jean King National Tennis Center is the biggest tennis stadia.