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Player Evaluation Metrics


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There are 5 entries in the glossary.
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Term Definition
TENDEX
Author: Dave Heeren

Dave Heeren's player evaluation metric which is generally considered the first player rating system with linear weights.

The Tendex Formula=[(Points)+(Rebounds)+(Assists)+(Steals)+(Blocks)- (Missed Field Goal Attempts)-0.5*(Missed Free Throws)-(Turnovers)-(Fouls)]/(Player's Minutes)

 
Touches
Author: Bob Chaikin

Touches estimate the number of times a player touched the ball in an attacking position on the floor. The theory behind the formula is that once a player gets the ball, he can only do one of four things (aside from dribbling, of course): pass, shoot, draw a foul, or commit a turnover.

Touches=Field Goal Attempts + Turnovers + (Free Throw Attempts / (Team's Free Throw Attempts/Opponents Personal Fouls)) + (Assists/0.17)

  • %Pass = 100 * (AST / 0.17) / Touches. The percentage of a player's touches that ended with him passing to a teammate in an attacking position on the floor.
  • %Shoot = 100 * FGA / Touches. The percentage of a player's touches that ended with him taking a shot and not being fouled in the act.
  • %Fouled= 100 * (FTA / (Tm FTA / Opp PF)) / Touches. The percentage of a player's touches that ended with him drawing a foul.
  • %TO = 100 * Turnovers / Touches. The percentage of a player's touches that ended with him turning the ball over.

 
Trade Value

The estimate using a player's age and his approximate value to determine how much value a player has left in his career.

Trade Value Formula=[(Approximate Value- 27-0.75*Age )^2( 27-0.75*Age +1)*Approximate Value]/190+(Approximate Value)*2/13

 
Trade-off Between Usage and Efficiency

The mathematical relationship between usage rate and efficiency.

Trade off between usage and efficiency explains the player's gain of offensive rating (points per 100 possessions) for drop of each percent of usage.

 
True Shooting Percentage

The metric that factorsa player's performance at the free-throw line and considers their efficiency on all types of shots.

True Shooting Percentage Formula=(Player's TotalPoints)/[(2*(Player's Field Goal Attempts+ 0.44*Player's Free Throw Attempts)]

 


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