Basketball Statistics Blog

Basketball Statistics Referred Concepts:
Some Thoughts About the Basketball Plus / Minus Formula Fundamentals

( Conclusion of the last Sunday article )

 • Logic of this method is straightforward: teams should perform better when their good players are playing versus when they are not.

 • The pure "unadjusted" plus / minus rating do not measure the value of the player per se; they measure the value of the player relative to the players that substitute in for him.

 • There are differences in the quality of players that players play with and against.

 • A weak starter on a team with exceptionally good starters ( relative to bench players ) will generally get a very good unadjusted plus / minus rating - regardless of his actual contribution to the team.

 • Star players play a lot of minutes per game and will generally have a plus / minus rating that mirror the team's number as a whole.

 • When the team gets beaten by a solid margin, the team as a whole will probably have very few players with a positive rating.

Photograph: Kevin C. Cox for Raleigh Durham

 • A situation when a player have a NEGATIVE rating ON court and a POSITIVE while on bench, MUST NOT be lightly analyzed as this player should have been played MORE minutes.

 • Players on poor teams have a hard time getting good plus numbers, due to the fact that their teams are usually behind.

 • We must use the plus / minus statistical formula as just ANOTHER of many tools available at eBA Basketball Statistics Creative Analysis System that will help the coach to evaluate the team, not as a exclusive one.

 • A good aspect of tracking plus/minus rating is that the players will be aware that the coach is grading the team's performance for every second a particular player is on the floor.

 • Also gives role players or player's who aren't necessarily big scorers or into compiling big personal statistics, another way to evaluate and feel good about what he is doing on the court.
Prof. Roberto Azar

Read More at eBA CLINICS ONLINE, search "plus / minus rating" 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 every Thursday

To Read ALL the Articles in this Series, click here: Categories > Analysis Concepts

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