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What is effective field goal percentage?

Updated Apr 13, 2017 at 6:37 PM EST

Effective field goal percentage, or eFG%, accounts for the fact that a three-point field goal is worth more than a two-point field goal, as described by basketball-reference. The formula is (FGM + 0.5 * 3PM) / FGA.

Among Dean Oliver's "Four Factors of Basketball Success," this was deemed to be most important.

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