First Day Four-Ball Scores: International 4, USA 1
Joaquin Niemann / Marc Leishman (INT) lost to Tiger Woods / Justin Thomas (USA) 4&3
Sungjae Im / Adam Hadwin (INT) beat Patrick Cantlay / Xander Schauffele (USA) 1-up
Byeong Hun An / Adam Scott (INT) beat Tony Finau / Bryson DeChambeau (USA) 2 & 1
C.T. Pan / Hideki Matsuyama (INT) beat Patrick Reed / Webb Simpson (USA) 1-up
Louis Oosthuizen / Abraham Ancer (INT) beat Gary Woodland / Dustin Johnson (USA) 4 & 3
