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Category: Basketball Advanced Stats

05/23/14

"Stat Gurus" Forced to Consider Possibility That the "Hot Hand" Exists
by David Friedman ~ in our Friday Press & Video Clippings

Friday Press Clippings:
"Stat Gurus" Forced to Consider Possibility That the "Hot Hand" Exists
By David Friedman

Basketball Statistician's Friday Press Clippings
From 20 Second Timeout
By David Friedman
Download source here:
"Stat Gurus" Forced to Consider Possibility That the "Hot Hand" Exists
by David Friedman

"... "Stat gurus" puff out their chests and declare that their proprietary methods give them a significant edge over "old school" talent evaluators but research shows that tanking does not work precisely because of just how difficult it is for anyone--even a "stat guru" armed with reams of "advanced basketball statistics"--to predict/project future player performance.

Another cherished "stat guru" assumption is that the "hot hand"--also known as being in the "zone"--does not really exist.

Many people who have coached, played or even just watched basketball believe that they can recognize when a player gets "hot"--when he is in an unstoppable "zone"--but "stat gurus" dismiss such ideas. ......"

"... "Stat gurus" cheered when a 1985 study conducted by Thomas Gilovich, Robert Vallone and Amos Tversky indicated that what may look like a "hot hand" is really just a random occurrence.

One major problem with that study, though, is that it did not represent a meaningful sample size. The researchers focused on the shooting statistics of the Philadelphia 76ers because the 76ers were the only NBA team at that time which kept complete shot by shot data.

That is kind of like looking for your lost keys in one small area not because that is where you think that you lost them but because that is the only place where there is enough light to conduct your search. ..."


The data seems to show that successful shots are more likely to follow misses rather than hits. In this image from Jumbo Dumbo Thoughts presented by #eBAStatsGroup #BasketballStatistics Analysis .
Image: Jumbo Dumbo Thoughts



"... The amount of available statistical data has exploded in recent years and, after examining more than 70,000 NBA shots from the 2012-13 season, three Harvard researchers concluded that a player who has made his previous several shots is at least slightly more likely to make his next shot.

Does this study conclusively prove that the "hot hand" exists? Of course not.

The scientific method requires that hypotheses be repeatedly tested; Albert Einstein's Theory of Relativity is perhaps the best known and most successful theory in scientific history but researchers to this day still test Einstein's hypotheses regarding space, time and gravity.

Any "stat guru" who asserts that he has created the definitive player rating system is not practicing science; he is peddling snake oil. ..."

"... When I criticize the flawed reasoning employed by many "stat gurus" and when I point out the inherent limitations of "advanced basketball statistics," some people misinterpret my analysis to mean that I harbor some reflexive biases against using the best possible statistical tools to better understand basketball.

My main point is that "advanced basketball statistics" should not be worshiped as some infallible bastion of truth; "stat gurus" should habitually create testable hypotheses and then see if the best, most comprehensive data that can be gathered supports or refutes those hypotheses.

If Player X supposedly has a "rating" of 33.8 and is supposedly exactly 2.5 rating points better than Player Y, what is the margin of error in that rating system? ..."

"... Ironically, as more data about basketball is collected and analyzed, it is becoming evident that assumptions made by allegedly objective "stat gurus" are not any more trustworthy than assumptions made by supposedly subjective and/or biased observers. ..." Read more ...

Read more articles in 20 Second Timeout






To read today's 'Press Clippings' in Spanish, click this week above on the 'Español' tab or afterwards click here: “Tres mentiras estadísticas del baloncesto ” by Pablo Mira from Noches de Basket.



Friday Video Clippings:
London Fireworks - New Year Live !



... London Fireworks - New Year Live !

London Fireworks in full HD - New Year Live by BBC One

Enjoy!


'Press and Video Clippings'
is a Series of Notes edited the 3rd. Friday of Every Month

To Read ALL the Clippings in this Series, click here: Categories > Contents Online



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02/27/14

About Basketball Steals and Defensive Efficiency and the Defense By The Numbers
and Basketball Actuality News Video in our Thursday's Basketball Statistics Referred Concepts

Basketball Statistics Analysis Referred Concepts:
Basketball Steals and Defensive Efficiency

Basketball Statistics Analysis Referred Concepts
In the current eBA Annual Basketball Statistics Clinic there is a debate about basketball steals: is a good number of steals a good indicator for the efficiency of the defense ?

Some thoughts to begin the discussion:

 • ...players or teams with the best steals averages are not as a highly likely consequence the best defensive players or steals...

 • ...if players go for too many steals, the probabilities are their defensive efficiency including everything is set at a disadvantage from that...

 • ...steals percentage (steals per possession) is a good statistic to consider...

 • ...declaring as an attribute or quality a defense on steals isn't going to be as being marked by a favorable outcome as one based on forcing misses...

 • ...if your aggressive style defense is more impressive than your team playing a more conforming to a standard defense, you'll have to examine and note the similarities or differences of your numbers with something...

The discussion and my analysis will continue on the thread "Steal Statistics: Cases & Registration" at the Processing Statistics Board.


basketball steats analysis
Photograph: Marin Independent Journal

Basketball Steals & Defense By The Numbers:

Data collected since 1988 by eBA Stats.com Team reflects the good and bad of the team’s defense.

We tracked possession-by-possession who was responsible for defending shots, forcing turnovers, committing fouls that resulted in free throws, or stealing the ball including effective ball denial defense.

The data suggests broad defensive principles where guards and perimeter defenders can pressure the ball and make opponents uncomfortable on the perimeter, but always with focus on the team’s force rules that funnel penetration to certain locations.

At those defined locations, the perimeter defender knows he’ll have help from a teammate — usually a big man.

This eBA Stats approach is very valid, and more detailed than what we see at another statistical systems. This kind of information is extremely useful and is being studied during the current eBA Basketball Statistics Analysis System Clinic.

The goal is to steal the ball and create turnovers by always having a defender close to the offensive player, limit the number of open looks at the basket, while simultaneously having big men challenge a greater proportion of the offense’s shot attempts.

This serves to both steal the ball and create turnovers and increase the statistical likelihood of misses.

By Professor

Excerpts of a discussion at the eBA Annual Basketball Statistics Clinic






Read More at eBA CLINICS ONLINE, search "basketball steals" and "defensive efficiency" in this blog and consult the Chapter "Basketball Steals Analysis" at the eBA Basketball Statistics Analysis System.

This topic is resumed in the eBA Basketball Statistics Creative Analysis System and at the eBA Encyclopedia.

'Basketball Statistics Tracking Referred Concepts'
is a Series of Notes edited the 4th. Thursday of Every Month !

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


Actuality News
Top 10 NBA Defensive Plays of the Week



Top 10 NBA Defensive Plays of the Week

About the NBA:
The NBA is the premier professional basketball league in the United States and Canada. The league is truly global, with games and programming in 215 countries and territories in 47 languages, as well as NBA rosters at the start of the 2013-14 season featuring a record 92 international players from 39 countries and territories. For the 2013-14 season, each of the league's 30 teams will play 82 regular-season games, followed by a postseason for those that qualify.



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02/21/14

"Advanced Basketball Statistics" Do not Tell the Complete Andrew Bynum Story
by David Friedman ~ in our Friday Press & Video Clippings

Friday Press Clippings:
"Advanced Basketball Statistics" Do not Tell the Complete Andrew Bynum Story
By David Friedman

Basketball Statistician's Friday Press Clippings
From 20 Second Timeout
By David Friedman
Download source here:
"Advanced Basketball Statistics" Do not Tell the Complete Andrew Bynum Story by David Friedman

"... It sounds patently absurd now (and it sounded absurd at the time), but not too long ago some "stat gurus" suggested that Andrew Bynum was more valuable to the L.A. Lakers than Kobe Bryant; these "stat gurus" crunched some numbers out of context and concluded that Bynum was more efficient and productive than Bryant, failing to understand that Bynum's efficiency was a product of the defensive attention drawn by Bryant ......"

"... Bynum was never as good as the "stat gurus" suggested--and much of what he accomplished in L.A. resulted not just from the attention that Bryant drew on the court but also the mentoring that Bryant provided: ..."

"... There is no stat for drawing double teams and there certainly is no stat for mentoring, so you cannot convince a "stat guru" that these concepts exist, much less that they actually matter--but, nevertheless, these concepts are important elements in the construction of winning teams.

The Lakers' record without Bryant this season speaks for itself but it is also worth noting what Bynum has been up to since the Lakers traded him to acquire Dwight Howard. ..."

"... Chris Grant, the recently fired Cleveland General Manager who brought Bynum to the Cavaliers, is reportedly a big believer in "advanced basketball statistics." There may not be a number to quantify Bryant's impact on the Lakers in general or on Bynum in particular but there is a number to quantify Grant's impact on the Cavaliers: a 20-33 record that places the Cavaliers 11th in the incredibly weak Eastern Conference. ..."

ESPN reports (January 2, 2014)that talks between the Lakers and Cleveland Cavaliers for a deal to end Pau Gasol to the Cavs in a trade-and-waive salary clearance move for Andrew Bynum have hit a standstill. The deal is not dead but it is no longer progressing. The Cavs, who have until Jan. 7 to trade Bynum before his contract becomes guaranteed and loses its instant value in a trade, are now actively seeking other options. In this photograph by USATSI from CBS Sports presented by #eBAStatsGroup #BasketballStatistics Analysis .

Photograph: CBS Sports

"... While some "stat gurus" praised Bynum to the hilt and raved about Bryant's supporting cast during the 2009 and 2010 title runs, I called those squads "among the least talented and least deep champions of the past two decades."

Other than Bryant, the top nine players in the 2010 Lakers' rotation (based on total regular season minutes played) were Metta World Peace, Lamar Odom, Pau Gasol, Derek Fisher, Andrew Bynum, Shannon Brown, Jordan Farmar, Josh Powell and Sasha Vujacic. ..."

"... "Advanced basketball statistics" can indicate that Bynum was productive while playing alongside Bryant--but they cannot explain why Bynum was productive, nor can they accurately predict how productive Bynum might be in a different role on a different team; only someone who watches basketball with understanding can make such evaluations.

If Bynum and the other 2010 Lakers were as good as so many people said that they were, it is reasonable to assume that at least one of those players would be doing better without Bryant than they did with him. ..."

"... In retrospect, it seems incredible that Bryant won two of his NBA titles with a career journeyman starting at point guard, with Lamar Odom as the team's third best player and with Pau Gasol as the team's second best player.

Most NBA championship teams are stacked with multiple All-Stars and/or future Hall of Famers--players who made their names before the championship run--but the only 2010 Laker besides Bryant who might make the Hall of Fame is Gasol, whose career was not on a Hall of Fame trajectory until he teamed up with Bryant. ..." Read more ...

Read more articles in 20 Second Timeout






To read today's 'Press Clippings' in Spanish, click this week above on the 'Español' tab or afterwards click here: “Análisis táctico Final Copa del Rey 2014 ” by Fernando Gordo from Solo Basket.



Friday Video Clippings:
The European River Cruise !



... The European River Cruise !

The European River Cruise !

... with spectacular scenery along the rivers Rhine, Moselle & Main.

Enjoy!


'Press and Video Clippings'
is a Series of Notes edited the 3rd. Friday of Every Month

To Read ALL the Clippings in this Series, click here: Categories > Contents Online



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10/14/13

Basketball Block Shot Analysis & Statistics Tracking:
With or Without Ball Control is the Question!

Basketball Block Shot Analysis & Statistics Tracking:
With or Without Ball Control is the Question!

The answer was:
A1 goes up for a shot under the basket and the defensive player B2 knocks the ball in the hands of the shooter while they are both in the air, and there is no case of foul. A1 then let the ball fall to the ground before landing back on the court, gathers the ball up and makes a basket.

What is the call for the game and the statistical tracking in case of turnover?

Celtics small forward Paul Pierce has his shot blocked by Charlotte Bobcats power forward Tyrus Thomas during their NBA basketball game in Charlotte, North Carolina. Photo: REUTERS/Chris Keane

By definition (see our eBA Basketball Statistics Analysis Encyclopedia ) a blocked shot occurs when a defensive player successfully and legally deflects a shot from an offensive player by touching and rejecting the ball on its way to the basket, and before it has reached its highest point, in order to prevent from a field goal.

In order to be a legal action, the  block must occur while the shot is travelling upward. It it is heading downward when the defender hits it, it is ruled a goaltending and counts as a made basket.

We have an altered shot when a blocker changes the shooter shot causing the shooter to miss the basket.

Opponents' field goal percentage vary widely depending on which interior defender is close to the basket. Milwaukee's Larry Sanders is one of the most effective interior defenders in the league: opponents struggle to score when he is near the basket. This not the case with Boston Celtics' David Lee: when he is close to the basket, opponents score at very high efficiencies. (Click on the picture to read the full article by Adam E. Gallagher from  Tropics of Meta). In this Image: by Adam E. Gallagher from  Tropics of Meta presented by eBA Basketball Statistics Analysis Group.
Interior Basketball Defense Analitics for the NBA
Image: by Adam E. Gallagher from Tropics of Meta

If the ball is knocked out of the offensive players hands while they are in mid air, then they regain control once they have landed, this is legal.

If the ball is forced out during the time that the player is in the air, the player regains control (while in the air) and lands, it is a travel.
eBA Basketball Statistical Tracking=
Forced Turnover

If the offensive player returns to the floor, holding the ball, and the ball has never left his hands, one of two things are possible:

1) if the defensive player has only one hand on the ball, it is a travel against the offensive player.
eBA Basketball Statistical Tracking=
Forced Turnover.


2) if the defensive player has both hands on the ball it is a jump ball which will be resolved according with the alternate possession rule

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05/28/13

A Loose Ball and Pushed by Own Teammate and the Efficiency in Different Possession Start
in our Basketball Stats Tracking Referred Questions & Basketball Statistics Video Case Study

Basketball Statistics Tracking Referred Questions:
A Loose Ball and Pushed by Own Teammate and the Efficiency in Different Possession Start

Basketball Tracking Stats Referred Questions
"... Loose ball and Team B player gets the ball and turns very quickly to shoot at the basket, but when he goes up for the shot he is pushed by another Team B player in the loose ball struggle yet.

The official blew the whistle and then realized that it was his own teammate that had contact with him.

Which is the rule of this situation and, specially the statistician rule according to the eBA Basketball Statistics System ? ..."



From the eBA System: About the Efficiency in Different Possession Start Cases

Here I post some comments on the results included in this post: Efficiency in Different Possession Start Cases.

The complete analysis is included in my exposition about "Possessions" in the eBA ONLINE Clinics:

~ The manner your opponent scores (2p, 3p or FT) does not have a major effect upon your efficiency;

~ Most teams performs better when the possession starts with a defensive rebound after an opponent missed 2p FG;

~ It's easier to put back the ball when an offensive rebound follows a 2 point shot than after a 3-pointer;

~ Good defense makes better team's offense by approximately 5% and good offense improves defense in the same way;

~ A steal is a great offensive tool, more than an offensive rebound;

~ The high efficiency in regards to steals is reasonable because a steal leads to a fast break which is one the most efficient offensive opportunities as well as an offensive rebound;

~ The biggest difference between NBA and European results is efficiency after non-steal turnovers probably because in the NBA an steal is always credited if the ball stays live, which is not always the case in European stats: the eBA Basketball Statistics System register the steals according to the NBA conception;

~ It is harder to take an offensive rebound after a 3p missed than after a 2p missed;

~ One factor that makes bigger the average efficiency after Free Throws is that, because of the team foul penalty, there are more Free Throws near the end of a quarter;

~ The penalty situation also helps to increase efficiency: the net result is a higher average for Free Throws cases than it should be.


Los Angeles Lakers center Andrew Bynum dives to for a loose ball as Denver Nuggets guard Andre Miller, right, looks on during the first half in Los Angeles. Photograph AP by Mark J. Terrill

Photograph Yahoo News

eBA Basketball Statistical Tracking=
In an inadvertent whistle situation like this, the official must determine where the ball was at the time of the whistle:

1) the ball is still in the shooter's hands: ball becomes dead immediately, no goal can be scored, and team B gets the ball back. No statistical register, out of the play-by-play story.

2) the ball was in the air: the goal counts if it goes, and the games goes with a jump ball or the Alternating Possession arrow, its depends by the league.

3) if the ball had been secured on a rebound already: that team receives the ball for a throw-in.


See in our forums the 'loose balls tracking' topics and the exposition "Basketball Possessions Tracking & Analysis" at eBA ONLINE.

All the terms in this post are widely explained at The eBA Basketball Encyclopedia.

This topic is resumed in the eBA Basketball Statistics System Book







Video Case Study:
Basketball Turnovers Tracking: The Same Mistake Twice !



The Same Mistake Twice !

"... Javale McGee makes the same mistake...twice... is there any special qualification of these two plays, when doing basketball statistical analysis, and not only tracking statistics ? ..."

Examine this Case Sudy in this Message from the eBA sketball Statistics Forums


'Basketball Registering Stats Referred Questions'
is a Series of Notes edited the 2nd. Tuesday of Every Month !

To Read ALL the Articles and see ALL the Videos in this Series, click here: Categories > Selected Questions




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05/05/13

About the Player's Scoring Possessions and Positions in Basketball Statistics
& the Basketball Training Video in our Sunday's Reflexions on Basketball Statistics

Sunday's Reflexions on Basketball Statistics:
About the Player's Scoring Possessions and Positions in Basketball Statistics

Basketball Statistician's Sunday's Reflexions
A resumed thought with reference to that "not specified percentage" in each field about which we are speaking related to 'player's scoring possessions' formulas: referred to assists I understand they must be counted and credited based on the length of the shots, as done at the eBA Basketball Statistics Analysis System.

Long shots must be credited with a 25% to the player serving the assist, meanwhile short shots, layups or shots within two meters +/- of the basket, in a relative manner easy shots, must be credited with a 50%.
Finally medium range shots would have the credit of a 63% for the shooter and only the 37% for the player serving the assist, quantification which may be a proper average for assist in general.

Therefore, the individual floor % is just a player's scoring possessions divided by his total possessions. This statistic take into consideration all areas of a player's offensive contribution, with the possible omission of his offensive rebounds, which are counted not in a forthright manner in the total possession formula.

On many occasions, field goal percentages and free throw percentages are referred as measures of a player's scoring efficiency. For guards, assist to turnover ratios are frequently referred. Individual floor % summarize all this into one number having a purpose. Thoughts ?

...one on one with Kobe Bryant and Lebron James...

Photograph from Swervechurch's Blog

And talking about positions, let's talk about the eBA Basketball Statistics Analysis System research to establish a correlation between the statistical category 'points-in-the-paint' and 'winning games' in basketball.

Surely, you keep listening game analysts talk about how certain teams protect the paint better than others or how another team has a weak inside presence.

Is it acceptable to say that your team have to be tops offensively and defensively to be considered a championship aspirant.
Close shots are the highest FG% shots so it is important, and 3pt shooting is the next best type shot.

Being tops offensively and defensively helped a lot of champions, but maybe "inside points" differential would be better measure for teams in general than the two parts individually, as your team could be above average but not spectacular on offense and above average on defense in addition.

Therefore, in an ideal manner your team would need inside/outside attack combo and as strong as possible differentials on each.

A selected excerpt from the discussions at the eBA Annual Analysis System Clinic Chat about this topic "Basketball Possessions".







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

This topic is resumed in the eBA Basketball Statistics Analysis System at the eBA System > The Articles

Sunday Basketball Training Videos:
LeBron James Signature Moves: Between The Legs Step Back

From the eBA-Stats.com Best Basketball Training Videos:
We Don't Own this Video, the Owner of this video is NIKE
and this video is from NIKE SIGNATURE MOVES SERIES
at http://www.nikebasketball.com


LeBron James Signature Moves: Between The Legs Step Back

Nike Basketball Pro Training presents LeBron James walking us through his between the legs step back. Watch how he breaks down the defense with his signature move.



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'Reflexions on Basketball Statistics'
is a Series of Notes edited the First Sunday of Every Month !

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04/26/13

The Concept of Main Pass in Basketball by Matias Barmat in our Friday Press Clippings

Friday Press Clippings:
The Concept of Main Pass in Basketball
By Matias Barmat, Basketball Statistics Advanced Analyst

Basketball Statistician's Friday Press Clippings
From World Hoop Stats
By Matias Barmat

Download source here:
' The concept of Main Pass ' by Matias Barmat



Lea este Artículo en Español

"... In basketball, every last pass before a field goal made (or foul play plus at least one free throw made) is counted as an assist.

In the NBA and NCAA, in addition to the normal assist situation, every field goal attempt which subsequently results in an offensive rebound plus a field goal made, counts also as an assist, because under those two paradigms ...

... every last complete ball trajectory between two teammates uninterrupted by opposing players must be considered as such. ..."


John Stockton, most career assists with 15,806 (1984-2003), who was inducted into the Hall of Fame in 2009, played four seasons at his hometown Gonzaga University in Spokane, Wash., before being drafted by the Utah Jazz with the 16th pick in 1984. He finished his career as the school's all-time leader in assists (554) and the sixth-leading scorer (1,340 points).
In his 19-year tenure with the Utah Jazz, which ended in 2003, Hall of Fame point guard John Stockton put up 5,000 more than the guys second on the list, Mark Jackson (10,323 over 17 years).
Photograph of Gonzaga/Collegiate Images

Photograph of Gonzaga Basketball

"... For example. Team A loses by one with 2.5 seconds remaining and no timeouts available. Whereas the last play of Team B was a field goal made (which caused the advancement in the score), A is forced to restore from its own end line.

A5 sends a hail mary pass that crosses three quarter court (the game clock didn't run as it's the last minute of the period; the time begins to run when the inbounds pass receiver makes contact with the ball), A2 (being blocked by B1) in jump effort taps the ball (it means, slaps it with the palm of his hand) and A3 with almost no time to react catches it and shoots to the hoop. It's in, and Team A wins. ...... ..."

"... This is a typical case of a double assist, as in ice hockey, but there are also cases where the assist is not necessarily the last pass of the possession.

We should take the spectacularity of a pass into account if and only if it's the main thing in a play: therefore, we're willing to talk about the concept of main pass. ...... ..." Read more ...

Read more articles in World Hoop Stats






To read today's 'Press Clippings' in Spanish, click this week above on the 'Español' tab or afterwards click here: ' El concepto de pase protagonista ' by Matias Barmat.

'Press Clippings'
is a Series of Notes edited the 2nd. & 4th. Friday of Every Month

To Read ALL the Clippings in this Series, click here: Categories > Contents Online



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04/15/13

Basketball Tracking Stats Case Studies ~ Basketball Turnovers Tracking March Case Study

Basketball Statistician's Digest:
March 2013 eBA sketball Statistics Case Study Conclusion

Basketball Statistics eBA Case Study
About Basketball Turnovers Tracking Case Study

" ... A2 is in control of the ball and is tied up by B5. Team A is awarded the ball for a throw-in. Before the throw-in takes place;


1.- A3 is charged with a technical foul, Team B shoots two free throws and Team A is awarded the ball for a throw-in; or

2.- B4 is charged with a technical foul, Team A shoots two free throws and Team A is awarded the ball for a throw-in.

What is the proper ruling and the correct INDIVIDUAL or COLLECTIVE statistical registration according to the eBA Basketball Statistics Analysis System 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; assist made, potential, missed or double assist; etc. ) ... ?"

Boston College players Ryan Anderson, left, Lonnie Jackson (20) and Olivier Hanlan (21) tie up the ball on the floor with Duke's Tyler Thornton (3) during the second half of an NCAA college basketball game in Boston, Sunday, Feb. 10, 2013. (AP Photo/Mary Schwalm)

Photograph AP by Mary Schwalm

Conclusion:

eBA System Statistics Fundamentals:

The purpose of a turnover is to reflect 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 mistake that turned the ball over to the opponent.

Basketball Statistics Philosophy:

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

There will be some errors that will not result in the charging of a turnover because they did not involve the turning of the ball over to the opponent.
Errors that occur at approximately the same time a team becomes entitled to the ball should not be considered turnovers.
The team should have time to realize it has the ball before being charged with turnovers.

That said, a turnover should be 'forced'. or 'unforced' according to our eBA Basketball Statistics Analysis System, when also are track the turnover against the 24 second-clock, recording the court placement, the play situation ( 1x1, 1x2, etc. ) and the points-off that turnover.

eBA Basketball Statistical Tracking:

• In 1.-, since Team B is awarded two free throws for the technical, charge A3 with a UNFORCED TURNOVER in the 'TF Category'.

Since Team A was awarded the ball do not charge A2 with a turnover in either case.

• In 2.-, do not charge B4 with a turnover, but record this instance againdt B4 in the play-by-play report !.

This Case Study was presented as every 15th. day of each month, on March 15th, 2013 in our eBA Portal: were sent 773 answers, 97 partial answers and 519 totally correct, that's means including all the options, registrations and qualifications.

A Six Month Free eBA Full Member Registration
was awarded to those who submitted the correct answers !


Go today to the eBA Portal to resolve this month eBA Basketball Case Study !








Find another basketball statistics case studies from the eBA Basketball Statistics Analysis System at the eBA Encyclopedia > Case Studies or at these blogs clicking here !



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02/24/13

Basketball Tracking Stats Case Studies ~ Basketball Assists Statistics Tracking Case Study

Basketball Statistician's Digest:
December 2012 eBA sketball Statistics Case Study Conclusion

Basketball Statistics eBA Case Study
About Basketball Assists Statistics Tracking Case Study

" ... A2 passes the ball to A4.

1.- B3 deflects the pass and it is gathered without difficulty by B5;

2.- B3 palms the pass and B5 cuts in front of A4 to head the pass off; or

3.- B3 deflects the pass and B5 gains control of the ball after a struggle with A4.

What is the proper ruling and the correct INDIVIDUAL or COLLECTIVE statistical registration according to the eBA Basketball Statistics Analysis System 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; assist made, potential, missed or double assist; etc. ) ... ?"

Basketball Assists Statistics Tracking
Photograph: Kevork Djansezian for The Press-Enterprise

Conclusion:

Basketball Statistics Philosophy:

An assist should be more than a routine pass that just happens to be followed by a field goal. It should be a conscious effort to find the open player or to help a player work free. There should not be a limit on the number of dribbles by the receiver.
It is not even necessary that the assist be given on the last pass.

There is no restraint on the distance or type of shot made, for these are not the crucial factors in determining whether an assist should be credited. Nevertheless, the eBA System register both factors: distance of the assist and type of shot assisted made.

Although, an assist should be 'made'. 'missed' or 'potential' according to our eBA Basketball Statistics Analysis System, when also are tracked the 'long assists', 'short assists', '2 or 3 points assists', 'assists on foul' and 'assists on/to the paint area'.

eBA System Statistics Fundamentals:

A player is credited with an assist when the player makes, in the judgment of the statistician, the principal pass contributing directly to a field goal (or an awarded score of two or three
points). Only one assist is to be credited on any field goal and only when the pass was a major part of the play.

That said, the 'second assist concept' (as in hockey) is integral part of our eBA Basketball Statistics Analysis System ! The same player cannot be credited with an assist and a field goal made on the same possession.

Such a pass should be either
(a) a pass that finds a player free after he or she has maneuvered without the ball for a positional advantage, or
(b) a pass that gives the receiving player a positional advantage he or she otherwise would not have had.

eBA Basketball Statistical Tracking:

In all cases, charge A2 with a FORCED or an UNFORCED TURNOVER. depending upon the defender action.

In 1.-, Credit B3 with a FORCED STEAL in the category of "deflections".

In 2.-, Credit B5 with an UNFORCED STEAL and B3 with a deflection.

In 3.-, The statistician will have to determine who played the most substancial part in the steal.

If the deflection was not strong and B5 had to fight to win the ball control, then B5 should receive credit of a FORCED STEAL. If the deflection was powerful, then credit B3 with a FORCED STEAL in the category of "deflections".

If there is doubt, credit the steal to the player who made the initial deflection, in this case B3.

This Case Study was presented as every 15th. day of each month ( with the exception of our vacations on January ~ February ), on December 15th, 2012 in our eBA Portal: were sent 928 answers, 221 partial answers and 603 totally correct, that's means including all the options, registrations and qualifications.

A Six Month Free eBA Full Member Registration
was awarded to those who submitted the correct answers !


Go today to the eBA Portal to resolve this month eBA Basketball Case Study !








Find another basketball statistics case studies from the eBA Basketball Statistics Analysis System at the eBA Encyclopedia > Case Studies or at these blogs clicking here !


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02/15/13

Friday Press Clippings:
The Basketball Statistics Non-Traditional Parameters
By Matias Barmat, Basketball Statistics Advanced Analyst

Basketball Statistician's Friday Press Clippings
From World Hoop Stats
By Matias Barmat
Download source here: ' The Basketball Statistics Non-Traditional Parameters '
by Matias Barmat

Lea este Artículo en Español

"... There are some types of analysis. There are those based on cumulative valuation, linear weight measures, balance algorythms (also called algorythms plus/minus) and the pseudo-qualitative ones, also called influence-type algorythms or "wins"-type.

There's a much more natural way to properly assess the player's performance, that is the mere average comparison, in which we obtain different types of "ratios". ..."

"... Rebounds per block

An internal player could be considered a power forward or a center in terms of total rebounds per block shot.

In the 75% of the cases, those who average less than 5 rebounds per block will tend to be centers.

On the other hand, internals who average more than 8 rebounds per block will tend to be power-forwards in the 90% of the cases. ..."

Two-Time Champion Hakeem Olajuwon Is the NBA's All-Time Shot Blocker with 3,830, is Blocking here Michael Jordan...
Photograph: Sports List of the Day

"... Assists per steal

The assist-per-steal ratio measures the degree of defensivity. Whereas steals-per-game ratio points us if the player can defend well or not, a player with more than five assists per steal tends in a 75% of the cases to not respect the principle of defensive balance. In other words, that player tends to be lazy -to be reluctant- to come back to defend and take his mark when the opposite point guard tries to move with the ball across the half court. ...... ..."

"... Points per three-point shot made

A player with more than 10 points per three-point shot made doesn't use it as a main weapon, which does not mean he could be an excellent three-point shooter in quantity and percentage. The external players tend in a 95 percent of the cases to score more than 30 percent of their points beyond the three-point line, in other words, more than a three-pointer for every 10 points, or less than 10 pts per 3-pointer made. ...... ..." Read more ...

Read more articles in World Hoop Stats






To read today's 'Press Clippings' in Spanish, click this week above on the 'Español' tab or afterwards click here: ' Los Parametros no Tradicionales de las Estadisticas del Baloncesto ' by Matias Barmat.

'Press Clippings'
is a Series of Notes edited the 2nd. & 4th. Friday of Every Month

To Read ALL the Clippings in this Series, click here: Categories > Contents Online



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About the eBA Stats Group Social Networks, Basketball Plays & Statistics Formulas!

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About Basketball Assists
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About Two Assists
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About the Basketball
Team Defense Analysis

Open Letter About LinkedIn

About Basketball Stats,
Methods and Players

The Hand IS Part of the Ball
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Underrated or Overrated
Individual Stats

Game Pace & TO Ratios
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Tracking Each Shot and the Game Situation with the Best Indicators of the Winner

Basketball Game Analyst
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About Basketball Scouters & Statisticians

Modern Basketball Assist-Turnover
Ratio Levels

The Statistical Decision Limit
in Basketball

Basketball Rebounds
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Statistics Never Tell
the WHOLE Story

Basketball Starters and Substitutes

About the Basketball
Plus / Minus Data Analysis

Statistics Box Score Balance Errors

Basketball Assists
& Potential Assists

Basketball Team Defense

Basketball TO
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Sobre las Redes Sociales del Grupo eBA Stats, Jugadas de Baloncesto y Fórmulas Estadísticas!

Sobre la Eficiencia en Baloncesto
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Sobre las Asistencias del Baloncesto
y las Asistencias Potenciales

Sobre la Forma Correcta de Evaluar
la Defensa en Baloncesto

Sobre Dos Asistencias
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Análisis de la Defensa de Equipo
en Baloncesto

Carta Abierta Sobre LinkedIn

Sobre Estadísticas, Métodos
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La Mano ES Parte del Balón
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'Ritmo de Juego'
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Cada Lanzamiento Conforme a la Situación y los Mejores Indicadores de una Victoria

Analista de Partido de Baloncesto
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Sobre Escouters y Estadígrafos
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Niveles de Relación Asistencias-Balones Perdidos en el Baloncesto

El Límite Estadístico Determinante
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Concepto del Rebote
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Titulares y Suplentes en Baloncesto

Sobre el Análisis de los
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Errores en el Balance de las Estadísticas

Asistencias y Asistencias Potenciales

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