Round 2 grades from Pinehurst No. 2

— -- PINEHURST, N.C. -- Martin Kaymer is the class of the 2014 U.S. Open. At 28th in the world ranking, he outplayed all the much higher ranked players on my grading board.

Kaymer appeared to be playing on a course on Friday morning that was very easy and un-U.S. Open-like. But the nearly-3-over-par stroke average for the field revealed a tough, sometimes unforgiving course that makes it easy to grade these great players with nothing but compassion and mercy.