Glossary

CraftedNBA

CraftedOPM

Offensive Crafted Plus Minus | (standardizedORPM + (standardizedOLEBRON x 2) + (standardizedORaptor x 2) + (standardizedOBPM x 2) + (standardizedOPredator / 2) + (standardizedOLA3RAPM / 2) / 8

  • 13% ORPM
  • 25% OLEBRON
  • 25% ORAPTOR
  • 25% OBPM
  • 6% OPREDATOR (preseason)
  • 6% OLA3RAPM
An aggregate of many different plus minus metrics. First, we convert all variables to the same scale, then we combine them and divide by the number of variables. We then take this number and convert it to the MYRPM scale.

CraftedDPM

Defensive Crafted Plus Minus | ((standardizedDRPM / 2) + (standardizedDLEBRON x 2) + (standardizedDRaptor x 2) + (standardizedDBPM / 2) + (standardizedDPredator / 2) + (standardizedDLA3RAPM / 2) + 0 / 7

  • 8% DRPM
  • 29% DLEBRON
  • 29% DRAPTOR
  • 8% DBPM
  • 8% DPREDATOR (preseason)
  • 8% DLA3RAPM
An aggregate of many different plus minus metrics. First, we convert all variables to the same scale, then we combine them and divide by the number of variables. We then take this number and convert it to the MYRPM scale.

Multi Year Crafted Plus Minus

(standardizedRPM + standardizeDLEBRON + standardizedRaptor + standardizedBPM + standardizedMYRPM + standardizedMYLEBRON +(standardizedPLEBRON x 3) + (standardizedPredator x 7) + standardizedLARAPM + standardizedLA3RAPM) / 18

An aggregate of many different plus minus metrics. First, we convert all variables to the same scale, then we combine them and divide by the number of variables. We then take this number and convert it to the MYRPM scale.

Offensive Load

(Assists - (0.38 * Box Creation)) * 0.75) + FGA + FTA * 0.44 + Box Creation + Turnovers

This formula comes from Ben Taylor of Backpicks.com Check him out, he's great.

Box Creation

A per 100 estimate of the number of open shots created for teammates | Ast*0.1843+(Pts+TOV)*0.0969-2.3021*(3pt proficiency)+0.0582*(Ast*(Pts+TOV)*3pt proficiency)-1.1942

This formula comes from this article by Ben Taylor of Backpicks.com Check him out, he's great.

Passer Rating

An estimate of the quality of a players passing | Standardized Load + (Standardized Ast to Load Ratio * 3)+(Standardized Ast to Load Ratio (positional) / 1.75)-(Standardized TOV to Load Ratio * 2)+(Standardized Creation to Load Ratio / 2)+(Standardized Height / 5)

We take this number and then convert it to a 1-10 scale. Both this and our Portability are versions inspired by the one's created by Ben Taylor from Backpicks.com Check him out, he's great.

Portability

TS% + (Standardized Shooting Ability x 2.5) + (Standardized CraftedDPM(positional) / 2) + (Standardized Versatility / 3) + (Standardized Passer Rating x 1.5) - (Standardized Load x .25) - (Standardized Box x .15)
  • 16% Scoring Efficiency
  • 40% Shooting Ability
  • 8% Defensive Ability
  • 5% Defensive Versatility
  • 25% Passing Ability
  • 6% Usage (penalize outliers)

We take this number and then convert it to a 1-10 scale. Both this and our Passer Rating are inspired by the one's created by Ben Taylor from Backpicks.com Check him out, he's great.

Shooting Proficiency

(2/(1+EXP(-3PAper100))-1)*3FG%

A measure of shooting quality that takes into account both attempts as well as accuracy.

Spacing

3PA * (((3P% * 1.5) * 1.5) - EFG%)

A measure of shooting quality that takes into account both attempts as well as accuracy, with a slight adjustment towards attempts.

Basketball Reference

eFGpct

Effective Field Goal Percent | (FG + 0.5 * 3P) / FGA | A measure of shooting efficiency that takes the added value of three pointers into account.

TSpct

True Shooting Percent | PTS / (2 * TSA) | A measure of shooting efficiency that takes threes and free throws into account.

threePAr

Three Point Attempt Rate - Percent of a players shot attempts that are three pointers.

FTr

Free Throw Rate - Number of free throw attemplts per field goal attempt.

TRBpct

Total Rebound Percent - The percentage of available rebounds a player corrals while he is on the floor.

ASTpct

Assist Percent - The percentage of teammate's field goals that a player assists while on the floor.

STLpct

Steal Percent - The number of opponent posessions that end with a steal by the player while on the floor.

BLKpct

Block Percent - The percentage of opponent two pointers that the player blocks while on the floor.

TOVpct

Turnover Percent - The number of turnovers a player commits per 100 plays.

USGpct

USage Percent | 100 * ((FGA + 0.44 * FTA + TOV) * (Tm MP / 5)) / (MP * (Tm FGA + 0.44 * Tm FTA + Tm TOV)) - | The percentage of plays a player uses while on the floor.

WS

Win Shares - The number of wins contributed by the player for the season.

WSp48

Win Shares per 48 Minutes - The number of wins contributed by the player per 48 minutes.

BPM

Box Plus Minus - An estimate of the number of points a player contributes above the league average player per 100 posessions.

VORP

Value over Replacement Player - A box score estimate of the points per 100 TEAM possessions that a player contributed above a replacement-level player, translated to an average team and prorated to an 82-game season.

NBA Stats Website

RADpg

Rim Attempts Defended per Game - The number of shots within 3 feet of the basket that a player defends per game.

DFGpct

Defended Field Goal Percent - The percent that opposing players shoot within three feet against defending player.

NDFGpct

Non Defended Field Goal Percent - The percent that opposing players shoot within three feet against all other players.

FGDiffpct

Field Goal Percentage Difference - The difference between what opposing players shoot at the rim vs all other players as opposed to the player in question.

DFL

Deflections - The number of deflections a player gets per 36 minutes.

Touches

Touches - The number of times a player touches the ball per game.

BBall Index

LEBRON

Luck-adjusted player Estimate using a Box prior Regularized ON-off

ESPN - Jeremias Englemann & Steve Illardi

RPM

Real Plus Minus - An estimate of a player's on-court impact on team performance, measured in net point differential per 100 offensive and defensive possessions.

Ryan Davis

RAPM

Regularized Adjusted Plus Minus

LARAPM

Luck Adjusted Regularized Adjusted Plus Minus

LA3RAPM

Luck Adjusted Three Year Regularized Adjusted Plus Minus

Nylon Calculus - Krishna Narsu & Patrick Miller

Versatility Rating

- from the article linked above - "...The first step is to match the offensive player with their corresponding position. To do so, I used Krishna Narsu’s ( @Knarsu3) positional estimates, based on Basketball-Reference‘s play-by-play data. Krishna Narsu’s table is available here.

I then calculated the percentage of time a player spent guarding each position, and squared the percentage for each position. The sum of the squares for each player is their raw versatility rating. Following the summation, I took the square-root of the raw rating in order to reduce the distance between the most and least-versatile defender (taking the natural-log would work as well), and normalized the data so the maximum number is 1. The smaller the rating, the more versatile defender."

I have then taken this number and converted it to a scale from 1-100 with 100 being the most veratile defenders, and 0 being the least versatile.

FiveThirtyEight

RAPTOR

Robust Algorithm (using) Player Tracking (and) On/Off Ratings

Cleaning the Glass

AstUsg

Assist to Usage Percent | AST% / USG% | How often a player assists compared to their usage percent.