Updated

A glance at the key hole Sunday at the U.S. Open.

HOLE: No. 13

YARDAGE: 121

PAR: 3

STROKE AVERAGE: 2.7

RANK: 18th

KEY FACT: Justin Rose made birdie on the easiest hole at Merion Golf Club to take the lead in the Open. Phil Mickelson bogeyed the hole after hitting a wedge over the green.