Basketball Statistics Blog

Basketball Statistics Referred Concepts:
About the Dean Oliver's Four Factors Concepts

"... Essentially, the four factors are the building blocks to the efficiency formula.

Efficiency data gives you an idea of the quality of a team’s offense or defense, but the four factors tell you why a team is good or bad when they have or don’t have the ball.

Here’s a breakdown of how each statistic on this concept is calculated…

Effective field goal percentage is like regular field goal percentage except that it gives 50% more credit for made three-pointers.

eFG%  = (.5*3FGM + FGM) / FGA

Turnover percentage is a pace-independent measure of ball security.

TO% = TO / Possessions

Offensive rebounding percentage is a measure of the possible rebounds that are gathered by the offense.

OR% = OR / (OR + DRopp)

Keep in mind that rebounding percentage is computed from box score data which does not contain team rebounds. Therefore, the figures shown here may differ slightly from calculations made on the rebounding totals provided by a team.

Finally, free throw rate captures a team’s ability to score from the line.

FTRateoff = FTM / FGA 

FTRatedef = FTA / FGA

Defensive FTRate uses FTA in the numerator since the defense has little control on the percentage of free throw attempts made by the opposition.

The four factors concept is based on the research from Dean Oliver, author of the book and eBook Basketball on Paper: Rules and Tools for Performance Analysis, and you can read Dean’s more detailed explanation of the four factors in the exposition by Prof. Roberto Azar from eBA-Stats about "Basketball Formulas Revision" in eBA ONLINE CLINICS....."

Read More at eBA CLINICS ONLINE, search "Dean Oliver's Four Factors" in this blog and consult the eBA Basketball Statistics Analysis System.

Read More at eBA CLINICS ONLINE, search "basketball steals statistical tracking" in this blog and consult the eBA Basketball Statistics Analysis System.

This topic is resumed in the eBA Basketball Statistics Analysis System
and at the eBA Encyclopedia.

'Basketball Registering Stats Referred Concepts'
is a Series of Notes edited the 1st. and 3rd. Thursday of Every Month !

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