The Back Nine: Why Martin Kaymer leads at U.S. Open

The first round is in the books at the 114 th U.S. Open and 29-year-old Martin Kaymer opened up a three-shot lead with a late afternoon birdie blitz at Pinehurst No. 2 that allowed him to card a 5-under par 65. Kaymer will head back to the tee Friday morning, scheduled to begin the second round at 8:02 a.m. local time. In this installment of “The Back Nine,” we offer nine nuggets of insight and analysis on Kaymer’s fast start.