06/13/2014 10:40 am ET

U.S. Open Tracker: Friday's Second Round

David Cannon via Getty Images

Martin Kaymer posted a 65 to start the U.S. Open with the lead – and a record for an Open round at Pinehurst No. 2 at that despite an afternoon tee time. The winner of last month's Players Championship hits the course early Friday to try and expand that margin.

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