These charts show the baseline numbers that I will use for all strokes gained calculations. I used Mark Broadie’s Every Shot Counts as a reference for the PGA Tour averages. The first shot focuses on all shots that are not on the green. A shot is classified as either Tee, Fairway, Rough, Sand, or Recovery. This indicates the lie from which the shot was hit from. You can refer my Strokes Gained Primer for a brief explanation of how the below numbers are used to calculate strokes gained for a particular shot. The basic information you need is the distance from the hole and lie type (tee, fairway, rough, etc) for before and after the particular shot you are interested in.
Without further ado… Here is the chart for showing the PGA Tour average number of strokes needed to complete a hole from various lies / distances:
Similarly, the strokes necessary to finish a hole on the putting green is shown below. Data is shown for the PGA Tour average, the average needed by a Scratch (Handicap = 0), and a player who averages shooting in the 90’s. In this case the distance to the hole is measured in feet.
A PGA Tour pro is 50/50 from ~8 feet. Meaning if you make an 8 footer, you gain 0.5 strokes on a PGA Tour player. Miss and you lose 0.5 strokes.
Similarly, a PGA Tour player averages exactly 2 putts from 30 feet. Meaning a PGA Tour player will 1 putt more often than they will 3 putt from 30 feet. That also means that they will 3 putt more often than they will 1 putt for anything over 30 feet.