Four Factors
Effective field goal percentage is like regular field goal percentage except that it gives 50% more credit for made three-point
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)
Dropp=Defensive rebounds from your opponent.
Free throw rate captures a teams ability to get to the free throw line.
FTRate - FTA / FGA
Points per possession (offense and defense)
Points scored divided by offensive possessions
Points allowed divided by defensive possesions
Other Team Stats
Games- Games Played
Possessions- Number of estimated possessions for the
team.
Rating - a simple rating system based on offensive ppp - defensive ppp
2 Pt FG% - The team’s field goal percentage for only 2 point shots
3 Pt FG% - The team’s field goal percentage for only 3 point shots
Team FT% - The team’s free throw percentage.
Experience – The total number of years for the top 10 players being analyzed. FR = 1, SO = 2, JR = 3, SR = 4
Scoring Distribution
2PT/TP – The percentage of 2 point goals
versus the teams
total points.
3PT/TP – The percentage of 3 point goals
versus the teams
total points.
FT/TP – The percentage of 1 point free
throws versus the
teams total points.
PPG- points per game
OPP
PPG- opponents
points per game
AST/FGM- The teams percentage of assisted made
baskets.
OPP
AST/FGM- The
opponents percentage of assisted baskets.
More Team Stats
Synergy
OFF- EFG% + AST/FGM
%
Synergy
DEF- Opponents EFG%
+ AST/FGM %
Block % OFF/DEF- Blocked shots / Opp. 2PA
Points per empty possession OFF/DEF - The formula describes the number of points a team scores per missed field goals, missed free throws, and turnovers. Pts/(FGx*.693 + FTx/2*.693 + to).
(The higher number, on offense, means the more productive a team is.)
Coach MPG Diff- A stat that I’ve created that shows the total difference of a players actual minutes played and a their “projected” amount of minutes played. I created it to see if a coach was using his players wisely based on their overall on court performance. The lower the number the better off a team will be in my opinion. The higher the number means a coach is playing unproductive players more minutes than they deserve. Players that are long term injured and are still on the list will skew the results some.
All the stat headings are self explanatory. The last column EST/MPG is a suggested minute per game average that I’ve created based on a players on court production.
Usage
((FGA + 0.475 * FTA + TOV) * (Tm MP / 5)) / (MP * (Tm FGA + 0.475 * Tm FTA + Tm TOV))
Effective field goal percentage is like regular field goal percentage except that it gives 50% more credit for made three-point
eFG%
= (.5*3FGM
+ FGM) / FGA
-True shooting %
Higher ranking is better
Used for players or teams, true shooting percentage describes a team’s field goal, three point, and free throw shooting. How well does a team shoot when taking free throw shooting and three-point shooting into account? The formula is a ratio of points scored per total field goal attempts and free throw attempts, thus accounting for the additional points scored on three pointers. TS% = Pts/(2*(FGA + (.475*FTA)))
Offensive rebounding percentage is a measure of the possible rebounds that are gathered by the offense.
OR% = OR / (OR + DRopp)
Dropp=Defensive rebounds from your opponent.
Free throw rate captures a teams ability to get to the free throw line.
FTRate - FTA / FGA
Assist
Percentage
- the formula is 100 * AST / (((MP / (Tm MP / 5)) * Tm FG) - FG). It is an estimate of the percentage of teammate
field goals a player assisted while he was on the floor.
-Turnover Percentage
Lower
ranking is
better
How often does a possession end with a turnover? The formula describes the number of turnovers per possession for a team or player.
(Note: this number is actually different for players and teams -- for teams it's an estimate of possessions so you subtract offensive rebounds because those technically extend one possession. For players, you can look at that or the percentage per 100 plays => 100 * TOV / (FGA + 0.475* FTA + TOV).)
-Pure point rating
Higher ranking is better
Used mostly for point guards, pure point rating can be used as a proxy for point guard quality by approximating the rate at which a player creates scoring opportunities for others. How well does a player balance the benefit of creating an assist with the cost of creating a turnover? The formula describes the net value of scoring opportunities a player created for teammates per minute played. 100*((ast*2/3)-to)/mins
Block
Percentage (%Blocks):
This is the percentage of opponents’ two-point shots that are
blocked by the
player while he is on the court. It is computed by Blocks/(%Min *
Opponents’
two-point attempts).
Steal Percentage (%Stls): This is the percentage of possessions
that a
player records a steal shile he is on the court. It is computed by
Steals/(%Min
* Team Possessions).
-Estimated touches per game
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)
-Percent of touches that have ended in shots.
%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.
-Percent of touches that have ended in passes.
%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.
-Percent of touches that have ended in turnovers.
%TO = 100 * Turnovers / Touches. The percentage of a player's touches that ended with him turning the ball over.
-Did player "Qualify" for post season awards
Yes means the player appeard in 75% of the teams games and averaged more than 25 minutes per game.-Shots per game.
The average number of shots a player shoots each game.
-Player Stat Profile
Stat
profile -
Players listed as scorer, perimeter, interior based on stats. They may
be
listed under different ratings.
OFF
Poss/GM-
An estimated number of possessions that a player averages per game.
FGA/TMFGA- The total percentage of shots a player takes versus his team total FGA.
Assist/TO – A player’s assist to turnover ratio
2pt FG% - A players FG% for only 2 point shots.
3pt FG% - A players FG% for only 3 point shots.
FT% -
A
players season FT %.
2 Pt FGA- Total number of 2 point field goal attempts.
3 Pt FGA- Total number of 3 point field goal attempts.
FTA- Total number of Free Throw attempts.
2 Pt vs Total Points- The total number of points generated by 2 point shots divided by the player total amount of points.
3 Pt vs Total Points- The total number of points generated by 3 point shots divided by the player total amount of points.
FT vs Total Points- The total number of points generated by 1 point shots divided by the player total amount of points.
Rating Systems
-EFF= Efficiency Rating from WNBA.com.
Higher
ranking is
better
(((Points + Rebounds + Assists + Steals + Blocks) - ((Field Goals Att. - Field Goals Made) + (Free Throws Att. - Free Throws Made) + Turnovers))
-Defensive Value
Higher ranking is better
Defensive value: Used to approximate a player’s defensive value to her team based upon blocks, defensive rebounds, steals, and personal fouls. How valuable is a player to her team defensively? The formula describes the value of a player’s defensive contributions per 40 minutes. ((dreb * .511 + stls * 1.60 + blks * .98 + pf * -.22)/minutes) * 40.
-Points per empty possession(Pts/zpt)
Higher ranking is better
How
often is a player
individually responsible for the added value of scoring possessions and
the
cost of non-scoring possessions? The formula describes the number of
points a
player scores per missed field goals, missed free throws, and
turnovers.
Pts/(FGx*.693 + FTx/2*.693 + to).
MEV/GM
– A rating
system based on the following
formula per game:
MEV = pts - 1.032*fgx - 0.587*ftx + 1.193*as + 1.030*or + 0.512*dr + 1.603*st + 0.981*bk - 1.448*to - 0.225*pf
PER- A complicated player rating formula that is known mostly in NBA circles. I’ve used a linear stat version and I’ve adjusted it for the college game.
Player Win Share- The "estimated" amount of wins a player has helped his team achieve.
Offensive Synergy - The players EFG% + their Assist Rate
Player Value – A value that is team specific for each player. Meaning if that player is out of the line up the team overall rating will decrease by that players value.
xTS% – Created by Nick Neuteufel. (His description is here:) I call it exclusive TS% because the stat is the true shooting percentage for everyone on the team who is NOT a certain player. For example, Chris Paul’s xTS% is the TS% of all LA Clippers not named Chris Paul..The formula is:
PxTS% = (tPTS-pPTS)/(2*((tFGAs-pFGAs)+0.44*(tFTAs-pFTAs))
Draft Grade – A stat based NBA Draft Grade base off of my BEMR player rating, a players, class, height and potential NBA position. They are not my opinion! They are stat based.
BEMR – My own player rating based on numerous statistics. Compared to other player rating systems I think I subtract slightly more for things that generally won’t help your team.