Data is cool and all, and can be marshaled for genuine insight, but one of the reasons match play golf is so much better than stroke play is that until the number-crunchers can calculate Strokes Gained: Guts, it cannot be reduced to numbers. Wins and Losses are all that matters.
The vagaries of match play.
The Americans had the six best players on the course in foursomes and only managed to split the session.