Learn how it will help you gain 1.2 strokes and read the full test results on mygolfspy.com.
From their site:
"Strokes Gained (developed initially by Professor Mark Broadie of Columbia Business School) putting has been approved by the industry and golfers as the most accurate and important way to present player putter efficiency. This statistic simply measures the average number of putts a player takes over 18 holes.
The final Strokes Gained 18 number you see is the number of strokes you can expect to drop off your score for a 18 hole round of golf. [...], MyGolfSpy scoring is based upon the Strokes Gained putting statistic. Like years previous, our testers putted from 5, 10, and 20 foot distances, but rather than measuring radial accuracy, this year we are looking at strokes gained vs. the average."