“EFF” in basketball stands for player efficiency. It is a total performance statistic that attempts to measure a player’s performance above the number of points produced. It is an addition of positive actions (points, rebounds, assists, steals, and blocks) minus negative actions (missed field goals, missed free throws, and turnovers).
It looks complicated, but I also discovered a good post that discusses each component of the formulas and can teach you how to calculate player efficiency rating. Of course, if you want a more in-depth look at PER calculation, John Hollinger’s book “Pro Basketball Forecast” is available on Amazon. PER Reference Guide
“EFF” in basketball denotes a player’s efficiency. In professional basketball , the most common statistic for comparing the overall value of players is called efficiency. It is a combined basketball statistic that is derived from basic individual statistics: points, rebounds, assists, steals, blocks, turnovers, and shot attempts.
Calculating PER. The Player Efficiency Rating (PER) is a per-minute rating developed by ESPN.com columnist John Hollinger. In John's words, "The PER sums up all a player's positive accomplishments, subtracts the negative accomplishments, and returns a per-minute rating of a player's performance." It appears from his books that John's database ...
The most commonly used alternative to the EFF is the player efficiency rating developed by ESPN basketball statistician John Hollinger.It is denoted as PER, and is derived by a very complex calculation designed to compensate for different teams' varying style of play, among other factors.
“Game Score” (GmSc) is a metric developed by basketball statistician John Hollinger. It is an extension of Player Efficiency Rating (as well as a simpler alternative). The intention is to give a “total value” on a player’s statistical performance in a basketball game. It takes every statistic listed on a player’s box score into account.
Offensive Efficiency Rating Where FGA = field goal attempts, FTA = free throw attempts, TO = turnovers Defensive Efficiency Rating After calculating these numbers, it is important to understand what is good and what is bad. Below is a quick guide to understanding the results of these calculations.
Defensive Efficiency. Use the formula field goals attempted - offensive rebounds + turnovers + (0.4 x free throws attempted) = total number of possessions for the season to calculate total team possessions. Divide the total number of points allowed by your team by the possession total you calculated in Step 1.