Hero World Golf Challenge leading scores

Following are the leading scores after Thursday's opening round of the Hero World Challenge (United States unless noted, par 72):

   66 - Jimmy Walker, Zach Johnson, Paul Casey (England)

   67 - Adam Scott (Australia), Bubba Watson, Bill Haas, Jordan Spieth, Brooks Koepka

   68 - Dustin Johnson

   69 - Patrick Reed, Chris Kirk, Anirban Lahiri (India)

   70 - Rickie Fowler, Matt Kuchar

   71 - Justin Rose (England), JB Holmes, Billy Horschel

   75 - Hideki Matsuyama (Japan)

Endi