BROOKLINE, Mass. (AP)A look at the key hole Thursday at The Country Club in the first round of the U.S. Open:
STROKE AVERAGE: 4.47
KEY FACT: Phil Mickelson made double bogey to end any chance he had of a back-nine surge on his way to an 8-over 78. Leader Adam Hadwin made his only back-nine bogey on what played as the toughest hole on the course.
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