Basketball Statistics Blog

Basketball Statistics Analysis Referred Concepts:
One Possession or Three Basketball Possessions ?

"...I have a perception about the possession begins whenever the team regains the ball and ends when they shoot or turn it over.

Let me give this example illustrating the difference throughout this game scenario. Team A has the ball and sets the offense to run a play. A3 get off a shot but it misses, and forward A5 rebounds the ball and passes it out to the guard A1. A1 restart again the offense and A4 shoot and miss a second time. A5 gets the rebound and puts it in.

The continuation possession statistical tendency says that Team A's offense produced a rating of 2.00 (one possession = two points). I think that the offense shows an efficiency of .67 (three possessions= two points).

Following-up this game scenario which rating more strictly correctly reflects that offenses efficiency in scoring ?..."

Photograph: Explore Steamboat

As stated in the eBA Statistics Clinics we can analyze possessions ( what you call continuation possessions ) as well as plays ( what you call "possessions" ):
The value of the "continuation possessions" is that they're approximately equal for a game. Teams take turns with the ball until the game ends. The team with the better offensive rating wins. In this evaluation theory, offensive rebounds increase offensive efficiency by giving a team more shots at the basket on some possessions.

The value of looking at "plays", can tell us how efficient is a team's offensive without taking an offensive rebound, which represent an unvalued analysis data for evaluating relative team strength.

For the eBA Basketball Statistics Creative Analysis System a possession starts when Team A gets the ball and ends when Team B gets it back from them, being the "continuation" possession a little more useful because they're approximately equal in a game, on condition that all the references from the my exposition about the "Possessions Analysis" ( see the previous messages in this thread ) must be taken in account...
Prof. Roberto Azar

Excerpts of a discussion at the eBA Permanent Basketball Statistics Clinic

Read More at eBA CLINICS ONLINE, search "basketball possessions" in this blog and consult the eBA Basketball Statistics Analysis System.

This topic is resumed in the eBA Basketball Statistics Analysis Encyclopedia
at the eBA Basketball Statistics System Book

'Basketball Registering Stats Referred Concepts'
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tags:  basketball  ~  statistician's digest   ~  basketball analysis  ~  basketball possessions
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Basketball Statistician's Digest:
Last 2010 eBA sketball Statistics Case Study Conclusion

Different Situations in a Basketball Turnover ... Case Study

"... A1 has control of the ball and then loses control or makes a bad pass. A5 attempts to save the ball from going out of bounds and....

 • case a) A5 is not successful; or
 • case b) A5 saves the ball by throwing it back into play and straight to B4; or
 • case c) A5 saves the ball by throwing it back into play and B4’s aggressive action causes B4 to recover the ball; or
 • case d) A5 gains control of the ball but as momentum carries A5 out of bounds, A5 throws a pass to A1 that is intercepted by B4’s aggressive action.

What is the statistical registration according to the eBA Basketball Statistics Analysis System in each one of the given situations, including the type of the registration ( type of turnover; forced, unforced, individual or collective turnover, good or bad foul; close, long, disputed or undisputed rebound; made, potential, missed or double assist; etc. ) ... ?"

Conclusion:

eBA System Statistics Fundamentals:

The intention of a turnover registration is to show statistically the times in which a team was given the ball and should have gotten some kind of shot but, before it could get any kind of shot, made some type of error that turned the ball over to the opponent.

A turnover can only be recorded against the offense; that is, the team with the ball possession. A team becomes the team with the ball when it has control ( involving the free throws situations ) or is entitled to the ball for either a throw-in or a free throw.

Philosophy: There will be some mistakes that will not result in the recording of a turnover because those mistakes did not entail the turning of the ball over to the opponent.

Mistakes that happen around the same time a team becomes entitled to the ball should not be considered turnovers. The team should have time to comprehend correctly it has the ball possession before being recorded with turnovers.

Photograph: Indy.com/

eBA Basketball Statistical Registration:

• In (a) charge A1 with an UNFORCED turnover and register A5´s action in the play-by-play report.

• In (b) charge A1 with an UNFORCED turnover and register A5´s action in the play-by-play report; but DO NOT charge a TO against A5 by no means ( typical error of the live stats ... ) !

• In (c) charge A1 with an UNFORCED turnover and a FORCED Steal in favour of B4. Also register A5´s action in the play-by-play report; but DO NOT charge a TO against A5 by no means !

• In (d) charge A5 with an UNFORCED turnover, but register the previous A1's action in the play-by-play report.

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