Why eFG% Is Invalid for Measuring the Efficiency of FG Shooting

Whenever you see basketball performance analysis where eFG% is used as the metric to measure the efficiency of FG shooting, you immediately know that the whole analysis is invalid. Since eFG% is widely used, much of the current basketball performance analysis is invalid.

Nothing helps: not the huge amount of the data, not the sophistication of the analysis methods, not the great looks of the graphics. In a way, they only make matters worse since they help hide the invalidity of the underlying assumptions.

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