Expected Effective Field Goal Percentage (XeFG%) is defined as the percentage of shots a league average player would successfully make depending on the type of shots a player attempts.
Expected Effective Field Goal Percentage Allowed (DXeFG%) utilizes the same formula, but it is used to gauge efficiency on defense rather than offense.
For example, centers tend to have higher DXeFG% values than guards because they guard other centers who shoot inside of the paint more often, where the league average percentage is obviously higher.
Therefore, a player’s actual Effective Field Goal Percentage Allowed (DeFG%) can be compared to their DXeFG% to determine if they’re performing above (negative +/-) or below (positive +/-) expectation.
For a more detailed explanation, read our article here.
This table is up to date through April 14th, 2021.