Today (Friday), the USGA announced a stimpmeter of 12 on the greens today.
That means super fast! Probably trying to slow down McIlroy's surge.
The recommedations below provide some reference points for how fast these greens really are.
The Stimpmeter is a device used to measure the speed of a golf course putting green by applying a known force to a golf ball and measuring the distance traveled in feet.
The distance traveled by the ball infeet is the 'speed' of the putting green. Six distances, three in each of two opposite directions, should be averaged on a flat section of the putting green. The three balls in each direction must be within 8 inches of each other for USGA validation of the test.
The USGA stimpmetered putting greens across the country to produce the following recommendations:[1] For the U.S. Open, they recommend:[1] The greens at Oakmont Country Club (where the device was conceived) are some of the fastest in the world, with readings of 13–15 feet.[6
