Roland Minton
Please send me corrections or additions to the book.
The statistics on this site are compiled from ShotLink data, administered by the PGA Tour. The PGA Tour is very generous with the data, and I thank Steve Evans and Kin Lo for their help and cooperation.
ShotLink data is collected at every tournament run by the PGA Tour. Unfortunately, this does not include any of the four major tournaments, or the European Tour, or the Japanese Tour, .... ShotLink records every shot of the tournaments covered. Lasers record the location of the ball to the inch, and volunteers record such data as whether the lie is level or not.
The concept of Strokes Gained is simple. Using ShotLink data, compute the expected score for an average golfer from every position on the course. Then, for every stroke by a specific golfer, compare the expected score before the shot to the expected score after the shot. This gives the golfer's performance on that shot relative to an average performance. The result is Strokes Gained!
To give a quick example, suppose a golfer is in the fairway 150 yards from the pin. Over the years, the pros have averaged 2.93 strokes from this position. Suppose the golfer's approach comes to rest 10 feet from the hole, from where the pros have averaged 1.68 putts. The approach saved the golfer 2.93-2.68 = 0.25 strokes. Strokes Gained for this approach shot is 0.25 strokes (regardless of whether the golfer makes the putt). Add up all of these Strokes Gained for all shots of that type for the year, divide by the number of shots, and you have the raw Strokes Gained for that golfer for that category.
Use the link below for more details on how I handle such things as course difficulty.
Link From Here
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