About 8 years ago, Neil Winston created a graph that plotted the singles average versus the handicap average for each yardage group. Since that graph hasn't been replicated for awhile, I thought it might be interesting to see what the latest data looks like.
The dataset is composed of those shooters who registered at least 1,000 singles AND 1,000 handicap targets in TY2012. There were 6,825 shooters who met that criteria. Of those, 1,351 had a singles average AND a handicap average of 90 or more.
Immediately below is the graph that is similar to what Neil provided those many years ago.
I then "zoomed" in for the second graph (losing 106 data points in the process).
Below that I then broke each yardage out in separate graphs so that they are a little easier to see.
Edited to add: Graph of complete dataset.
Edit #2: Corrected 18- and 19-yard graphs. Singles and handicap averages were switched around on those two groups. All affected graphs have been corrected.