US OPEN SERIES BOLSTERS SUMMER TENNIS SEASON WITH ADDITION OF HALL OF FAME OPEN IN NEWPORT, R.I.   Historic ATP 250 Grass-Court Tournament to Launch 2020 US Open Series   WHITE PLAINS, N.Y. AND NEWPORT, R.I., November 4, 2019 –The United States Tennis Association (USTA) and International Tennis Hall of Fame today announced that the Hall of Fame Open, an ATP 250 grass-court … [Read more...] about Hall of Fame Open Officially Joins the US Open Series beginning in 2020