Best way to describe the stat:

The number of putts in comparison to the Tour average computed by the average number of strokes based on the distance relative to the hole (simple explanation - HAHA).

The new "strokes gained-putting" stat measures the number of putts a golfer takes relative to the PGA Tour average, taking into account the initial putt distance on each green. In 2010 Luke Donald led the Tour with 0.871 strokes gained. That means in each round, he gained an average of 0.871 strokes on the field just from his superior putting ability. Here's how the stat is computed. Suppose, for example, a golfer one-putts from 33 feet. The Tour average to hole-out from that distance is 2.0 putts, so a one-putt gains one putt on the field. A two-putt neither gains nor loses, but a three-putt represents a loss of one putt (or stroke) against the field.

From other distances, the strokes gained or lost are typically fractional. For example, suppose a golfer one-putts from eight feet. The Tour average from that distance is 1.5, so a one-putt gains 0.5 strokes, but a two-putt loses 0.5 strokes. If the golfer started from eight feet 10 times in the round and made half of them, his strokes gained would be zero—he gained 0.5 on five holes and lost 0.5 on the other five holes

Read more: www.golf.com/.../strokes-gained-putting-behind-newest-pga-tour-stat

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