Basketball Statistics Blog

Books Review: July 2009 eBA Best Seller

The Breaks of the Game
By David Halberstam

The Breaks of the Game is sports reporting at its finest--basketball's equivalent to Roger Kahn's The Boys of Summer.
Join David Halberstam on his yearlong journey with the 1979 Portland Trail Blazers and witness professional basketball from the inside, where front-office egos, big-money contracts, and the colorful personalities of coaches and players collide, and winners and losers emerge.

This insightful account is evidence of how much basketball has--and hasn't--changed since 1979, before the money really started rolling in.

Available for the first time in years, David Halberstam's The Breaks of the Game focuses on one grim season (1979-80) in the life of the Portland Trail Blazers, a team that only three years before had been National Basketball Association champions.

As Halberstam follows this collection of men through the months, through the losing streaks and occasional victories, the endless trips and the brutal schedules, we come to know them and their world--the other players, coaches, and owners; the competition, drafts, trades, and traditions; the wives, the fans, the media connections--a world of grand dreams, impossible expectations, and bracing realities.

To read the complete review and to see the video
about this book and David Halberstam, go to eBA Portal

 • Author: David Halberstam
 • Paperback: 416 pages
 • Publisher: Hyperion (February 17, 2009)
 • Language: English

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To read this month eBA Store Best Seller in Spanish and see the video
Canastas sagradas ~ Lecciones espirituales de un guerrero de los tableros
By Phil Jackson and Hugh Delehanty ~ click here !

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Basketball Statistician's Digest: Double Bonus Situation

Rule Fundamental:
A 'double bonus situation' is a statistic terminology reserved for the U.S. collegiate basketball, where it is ruled the one-and-one free throws rule.

Once a team has committed more than six fouls in a period, the fouled player shoots a one-and-one ( commonly known as one and a bonus ).

Photograph: Arkansas Expats

Rule Interpretation:
According to this rule, the player must make the first free throw in order to get a chance to shoot a second: if the first free throw is made, another one is awarded, if the first free throw is missed, play resumes as normal. Starting with the tenth foul in a half, all fouls committed from that point forward during the remainder of the game result in two free throws being awarded to the opposition.

Free throws are not awarded for player control fouls ( most often charging fouls ), even if the team fouled is in the bonus.

eBA Statistical Register:
To the first situation, we call the first bonus, being the tenth foul situation called the second bonus.

The statistical register is performed as usual and exactly the same as analyzed in Free Throws Statistical Charging.

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Basketball 2009 Review: NBA All Star Game 2009 Highlights

Here are the Highlights from the 2009 All Star Game in Phoenix.
Here are all Players:
West: Chris Paul, Kobe Bryant, Amaré Stoudemire, Tim Duncan, Yao Ming, Tony Parker, Chauncey Billups, Brandon Roy, David West, Pau Gasol, Shaquille O'Neal, Dirk Nowitzki
East: Allen Iverson, Dwyane Wade, LeBron James, Kevin Garnett, Dwight Howard, Jameer Nelson, Devin Harris, Mo Williams, Paul Pierce, Rashard Lewis, Chris Bosh, Danny Granger, Ray Allen, Joe Johnson.
The Western All Stars won 146:119 (72:67)

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Basketball Statistician's Digest: Illegal Lane Invasion on a Last Free Throw

"... B1 invades the lane against the rules before the final free throw from A1 strikes the rim. A2 at that time invades the lane early, accompanied by A3, both players in marked lane spaces.... What is the rule of the game and of the statistical registration in accordance with the eBA Basketball Statistics Analysis System ? ..."

Illegal Lane Invasion on Jordan's Last Free Throw in a Photograph from Worldisround.com

Commentary=
Violations of A1 and A3 are dismissed. Therefore a new free throw is awarded to A1 due to B1's lane violation.

eBA Basketball Statistics Registration=
Nothing is registered out of the legal free throws according to the play.

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Basketball Books Review:

My Personal Best:
Life Lessons from an All-American Journey
By John Wooden & Steve Jamison

"A good teacher or coach must not only understand others, but himself or herself as well." —John Wooden In this captivating book, beloved Basketball coach John Wooden reveals the educational journey he took throughout his legendary life, from his earliest days on a small Indiana farm to the glory of his historic record-setting UCLA dynasty.

Throughout My Personal Best, Coach Wooden introduces us to the men and women who shaped him and the many important life lessons they taught along the way... This treasure trove of all things Wooden also includes rare, never-before-seen photos from Coach's private collection.

Pairing these priceless photos with evocative personal stories, this modern sports classic encompasses the arc of Wooden's achievements and the spirit of hisAll-American experience, one that will serve as inspiration to anyone who aspires to be a coach--not only on the court but in every arena of life.

"John Wooden, whose UCLA Bruins won 10 NCAA titles in 12 years, is the greatest college basketball coach of all time. Wooden has lived his life with quiet dignity and integrity.
The "life lessons" he presents here are less about basketball than about incorporating some of that dignity and integrity into one's own life. Certainly basketball fans will find a trove of wonderful anecdotes in these pages; after all, teaching the game was Wooden's life's work, and he illustrates many of his points with examples from his coaching career.

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 • Authors: John Wooden & Steve Jamison
 • Hardcover: 192 pages
 • Publisher: McGraw-Hill; 1 edition (April 9, 2004)
 • Language: English

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Basketball Statistician Sunday's Digest: Game Analyst or Scientific Analyst ?

Some reflections with the hope of contributing to the discussion about the use of statistics and statistical analysis of basketball.

When I write my expositions for the basketball statistics register courses in eBA Clinics, I always arrive to the point of explaining why some formula is not applied by the eBA Basketball Statistics Analysis System.

I was working principally over the past 20 years with the statistics from the South American and European basketball, based upon the formulas I used as a coach to evaluate players. But always I stayed with the doubt with reference to those mathematical-complicated machinations based formulas used on other systems...

I am a 'game analyst' but NOT a scientific analyst of the regression and coefficient type. And I think that my head coach must understand every number and number I give him, and this data's source !

Must a Basketball Head Coach understand a formula like this... ?

             __                               __
            |           (Rtg-Opp.Rtg)           |
Win% = NORM |-----------------------------------|
            |       SD(Rating Difference)       |
            |__                               __|

SD(Rating Difference) = SD(Rtg - Opp.Rtg)
                      = SQRT[Var(Rtg)+Var(Opp.Rtg)
                      -2*Cov(Rtg,Opp.Rtg)]

NORM means to take the percentile of
a mean-zero variance-one normal distribution
corresponding to a value given by that in
the brackets I faked.

Rtg:		Points scored per 100
		possessions (offensive rating)
Opp.Rtg:	Points allowed per 100
		possessions (defensive rating)
SD():		Statistical standard deviation
		of quantity in parentheses ()
Var():		Statistical variance of
		quantity in parentheses ()
Cov():		Statistical covariance of
		quantities in parentheses ()"

( and from the complicated formulas , this is one of the simplest ! )

...I am having doubts ! Perhaps we are exaggerating...

Therefore, the eBA Basketball Statistics Analysis System is based upon calculations of various statistical categories, weighted in terms of importance, that have been used by basketball coaches for many, many years.

Basketball Coaches not always understand the intrigues of some of the statistical specialized technical terminology, but I am completely sure that the Head Coach must understand the source of statistical data we give them !

To be continued with another reflections next Sunday...

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2009 eBA Best Basketball Clip Candidate

' Snoop Dogg ~ Rhythms of Basketball and Music '

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Basketball Statistician's Digest: Basketball Coaching Philosophy

From The Coaches Clipboard By Dr. James A. Gels
Download source here: ' Basketball Coaching Philosophy '

"... Each coach must develop his/her own coaching philosophy, or system of beliefs and ideas. When interviewing for a coaching position, the question almost always comes up, "What is your coaching philosophy?" This article discusses a number of thoughts relating to this topic. ..."

"... Whatever your style, be agreeable and, without compromising your principles, be someone that is easy to work with. As a coach, you have to interact and deal with a lot of people... players, administration, faculty, parents, assistants, opposing coaches and players, officials, fans, etc. We all like working with someone who is agreeable and easy to work with, and someone who follows the rules and is respectful of others. ..."

"... Communicate with your players as a group and one-on-one, and maintain an "open door" policy. Before the season starts, meet with each player individually about goals, expectations, etc. Have occasional team meetings to discuss "issues". Ask players for their input at halftime. ..."

"... Flexibility is key here. Some years, you may have race horses and you can use the running game. Other years, you may have mules and bulls and will find the slower paced, inside power game better. Even if you are a coach that structures your entire program on one style of play, you may find that you will need to be flexible in some game situations. For example, we like to press and run. But when we have a couple of our slower players in the game, we may have to drop the press in favor of good half-court defense. ..."

"... Team goals could vary from year to year. A team goal might be to win the state championship, or the conference title, or maybe to finish above .500 with a winning record. With a team lacking in talent or experience, it might be to just be a better team by the end of the season, in preparation for next year. Individual player goals might be developing a post player's moves and strength, or a guard's dribbling, ball-handling, and shooting. But personal character goals are even more important... developing priorities, commitment, work ethic, trust, loyalty, etc. ..."

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To read Today's 'Press Clippings' in Spanish, click this week above on the 'Español' tab or afterwards click here: 'Proceso de Toma de Decisiones en Baloncesto' por Damián Iglesias Gallego y otros

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Our Fans in eBA on Facebook frequently suggest us to enrich our eBA Group Sites with social features which instantly awakens and strengthens the great community that visits our sites !

Consequently, from today you are all invited to share your ideas and comments from the eBA Portal (see on the central column "All YOUR Commentaries") ! ...and for Instant Translation Click in 'Translate'

Be Welcome !

Thereby we are now letting our visitors discover each other by joining our "eBA Friends Corner" site ( on the right column of the eBA Portal ) with existing accounts from a variety of services, as Google, Yahoo, Twitter, AOL, orkut y Plaxo, enforcing our existing community.

Become our fan in eBA on Facebook AND ALSO be our friend in the eBA Portal and receive freely your 'Registered Member' password for the eBA Group Sites: to read all the eBA Encyclopedia, write your articles in the eBA Portal, comment the posts here in the eBA Blogs, and access to the reserved forums at the
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Basketball Comments: Kobe Bryant vs. Zone Defense

This video details the superior defenses that Bryant and other superstars have to go up against in the modern era of basketball. Unlike he 80's and 90's isolation brand of basketball, Kobe is the most doubled-teamed perimeter player in the history of the NBA.

"The rules are completely different now,'' said Bryant, comparing his era to Jordan's. "I've always been able to shoot the ball, but the rules have changed since he played in terms of playing a zone defense.
You have to be a jump shooter now because there's no way you can get to the basket -- particularly myself because they just stack guys up.
I wish we had the rules they had back in the day where you could isolate guys and you could go to the basket anytime. But now you have to be able to shoot.''

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Basketball Statistician's Digest:
Assist in two Passes ~ Double Assist

"... Player A1 makes a great full court pass to A2 who only has to hand-off the ball to A3 for an uncontested lay-up that is made. How the assist is recorded in accordance with the eBA Basketball Statistics Analysis System ? ..."

Pau goes up for an uncontested layup in a Photograph from Lakers Gasol.com

Commentary=
Go to this thread of our eBA Forums: Assists ~ Made, Potential & Missed to read the discussions and definitions about the eBA Double Assist concept.

eBA Basketball Statistics Registration=
It's all depends from where are you seeing the game:

- if the game is under FIBA or ULEB rules, even though the pass from A1 created the basket, it was not the last pass before the score. An assist to A2 is registered.

- if the game is in the USA (NBA or NCAA) no assist is registered, because A2's deflection is not considered ball control.

- for the eBA Basketball Statistics Analysis System, if A2 was in shooting situation and "give up" the throw in favour of A3, awards an assist to A1. In any other situation, an assist to A2 is registered awarding a "double assist" to A1.

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Basketball DVD Review:

Duke Basketball ~ Attacking the Zone
By Mike Krzyzewski

Product Description
With Mike Krzyzewski "Coach K", Duke University Head Men's Basketball Coach; NABC "Coach of the Decade," 12X NABC "Coach of the Year," Naismith Memorial Basketball Hall of Fame (2001), 3X NCAA National Championships ('91, '92,'01)

In an energetic and information-packed on-court presentation, Coach Krzyzewski explains the zone offense and principles he uses in attacking a half-court zone defense. Krzyzewski believes the secret to effective zone offense is to keep it simple by running one highly effective offense that can be utilized against even the most potent defenses.

Coach Krzyzewski has designed a zone offense that is easy to implement and impossible to stop! In addition, Coach K shares the five major components of this efficient offense when invading the zone.

Read More at the eBA Basketball DVDtec.

 • Actors: Mike Krzyzewski
 • Region: All Regions
 • Format: Color, Director's Cut, Full Screen, NTSC
 • Language: English
 • Number of discs: 1
 • Studio: Championship Productions
 • DVD Release Date: 2005
 • Run Time: 40 minutes

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Basketball Statistician Sunday's Digest: Special Efficiency Values for Playoffs

" Does the eBA System have a specific method or basic efficiency equation in terms of scoring or Points per Possession for the Playoffs time ? "

Which is the real question:
- we are trying to compare the playoffs numbers with the regular season numbers ...
- we are trying to analyze the effect of playing the same opponent for many consecutive games ... or
- we are trying to analyze points per possession ?

After the regular season, playoffs time, the fatigue have an effect upon shooting more than any other stat and effective shooting % moves downward and lower. The best players on both teams play more minutes and marginal players disappear in essence either in effectiveness or actual court appearance.

... Pau Gasol reacts to action in a Photograph from Chris Carlson at Silver Screen and Roll ...

A determined playoffs series may have differences with the regular season or from series to series, no not differences at all. Two determined high-scoring teams may give an enlarged production at all the statistics categories, but the possession value does not have direct relation with any "playoffs conversion" rate.
It is possible to apply during the playoff the following experimental formula:


Shooting Efficiency= Total Points / { FGA + ( ( FTA + Bonus FTA ) / 2 }


Rates or efficiencies should be calculated for each series, and weighted differently as the playoff round progress. An equation must be based on the players who are analyzed against the opposition and are only considered in the context of that one series.

Resuming this topic and according to eBA archives of 10 past years in the playoffs series, for the finals players tend to do worse than their regular season production/efficiency and rates tend to be around 91.4 % of what they were in the regular season, with conversion rates of 98%, 96%, 94% and 92% which could be alternatively applied for each of 4 rounds of playoffs.

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2009 eBA Best Basketball Clip Candidate

' Basketball Is Like a Game of Chess '

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Basketball Statistician's Digest:
The (Tentative) Rethinking Basketball Rookie Ranking Framework

From Rethinking Basketball By Q McCall
Download source here: ' The (Tentative) Rethinking Basketball Rookie Ranking Framework '

"... Any successful team must have players that can create offense. A team of the five most efficient players in the game would have a tough time scoring because they rely on these high-usage types to create opportunities for them. ..."

"... but for a lot of players, the differences are more subtle and usage rate can help sort out the prospects from the suspects. For the most part, the ability to get your own shot (or get to the foul line) is either something you have or you don't. Usage rates certainly fluctuate from season to season but, generally speaking, usage rate tracks an innate skill. ..."

"... Just to elaborate and make the point more explicitly, a rookie’s ability to produce points might not be quite as important as the means by which the player creates those points. So even if we use points per game as our primary point of reference, paying attention to what the player actually does once they have the ball in their hands may be useful. In some ways it comes down to a matter of creativity – the ability to perceive multiple outcomes to a given situation and having the ability to bring one of them to fruition. ..."

"... Conceptually, Chaiken Efficiency Ratio is the ratio of points a player is individually responsible for to the possessions that a player is individually responsible for ending without points. It’s a proxy for scoring decision making – if a high usage player is able to create points more often than they waste a scoring opportunity, we can say they are making good scoring decisions. ..."

"... This idea essentially fits with a lot of the other ways I already use statistics for analyzing point guards and team dynamics. However, I’m going to deviate from Gomez and colleagues’ framework slightly and look at made free throw rate instead of free three percentage as a secondary proxy with which to analyze a player’s ability to make offensive moves that draw fouls. ..."

Read more in Rethinking Basketball

To read Today's 'Press Clippings' in Spanish, click above on the 'Español' tab or click here: 'Goleada estadística' por Donald Peña

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Basketball Statistician's Digest: The Analysis of Basketball Assists

...... Another obvious element is that this metric is somewhat dependent on how often a team made three-pointers, because the circumstantial numerical evidence that so many three-pointers are assisted.
It is not surprising at all that three-pointers tend to get more assists, having a portion of two-pointers which are "un-assistable", the result of put-backs and tip-ins, while few threes are shot off of the dribble.
Another evidence in our assist analysis maybe a good shooting team that doesn't score often on put-backs, so there were more two-point assist opportunities.

The eBA Basketball Statistics Analysis System, is able to give two assists - like in hockey - on one play. Many times, a point guard gives a great pass, and another player makes a pass that leads to the basket. The first pass gets a credit in the game analysis chapter - no at the stats numbers ! -, because it can be more important than the second pass. On the other hand, a great pass that leads to the shooter being fouled is credited as an assist.

Photograph: Basketball Statistics Online

In the case of free throws, eBA Basketball Statistics Analysis System register the assist if the fouled player makes both (or the three) throws or one of them. But in this case, in our rate we give the assist a qualification of one point for each free throw made.

The eBA Basketball Statistics Analysis System registers the following stats about Assists, in addition to the Made and Received ones:

Defensive assists, missed assists, potential assists, assists in paint, assists outside of paint, within each, assists leading to jumpshots, assists leading to layups, assists leading to foulshots, and within each of these, are they part of fastbreak or not. ......

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Funny Basketball: HARLEM GLOBETROTTERS - Fun moments

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Basketball Statistician's Digest:
Out of Bounds without Ball Control

"... Player is dribbling down the side of the court. During the dribble, he stops touching the ball and allows the ball to bounce a couple of times inbounds parallel to the sideline, as his right foot goes out of bounds a few times. He gets back inbounds and takes control of the ball again and continues the dribble. Is the call out of bounds, even if he did not have control of the ball while his foot was out ?
If positive, which is the stats register ? ..."

Photograph: Washington Post

Commentary=
He's out. The key is that he still did have player control because he was dribbling. If there is a situation where the player had touched the ball but did not have control he may go out and return to be the first to touch it or get control. In the play you described there was no loss of player control.

eBA Basketball Statistics Registration=
Unforced Turnover if the player was not forced to go out of bounds; and
Forced Turnover if the defensive pressure of an opponent forced the player out of bounds.

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Basketball DVD Review:

"48 Championship Basketball Drills"
By Marty Schupak

Product Description
Marty Schupak and the Youth Sports Club, the producers of the best selling video "The 59 Minute Baseball Practice" and "Championship Soccer Drills" take on the sport of basketball. This high digitized DVD shows coaches and parents from the youth level all the way up to High School a wide variety of useful drills.


"48 Championship Basketball Drills" covers: shooting, conditioning, defensive skills, rebounding, ball handling, passing and foul shooting techniques. The 22 shooting drills are especially valuable and many of them have been used by teams at all levels. The DVD concludes with four sample practices along with ten coaching tips. The DVD is fast paced and each drill starts with a picture of a basketball court with the placement of where the players should line up.


From Marty Schupak himself: "... I had the pleasure of producing “48 Championship Basketball Drills” with one of the best high school coaches in the United States. The drills are designed to keep everyone involved. There is constant movement of players for each drill and valuable tips are pointed out throughout the DVD. My personal favorites are the rebounding and shooting. ..."

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 • Actors:
 • Region: All Regions
 • Format: Color, Director's Cut, Full Screen, NTSC
 • Language: English
 • Number of discs: 1
 • Studio: Youth Sports Club
 • DVD Release Date: September 20, 2003
 • Run Time: 42 minutes

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Basketball Statistician Sunday's Digest: Steals Statistical Register

Kendall Ponder wrote in the Basketball Coaching Forum: "I decided years ago to give the steal to whoever came up with the ball..... Both the player who tips the ball and the player who was in correct defensive position to come up with the ball made positive plays to get the ball. I don't split steals but I do give half a steal if a player ties up the ball. It doesn't happen enough to make a difference is a players avg steals per game but it makes sense to me to do it that way....."

Rick Allison answers: "I'm sorry if this may seem offensive, but...the last post (and some other previous) is what I find intriguing and, unfortunately, widely prevalent in the world of Basketball coaching/training (actually, the world in general). That is, people expressing less than informed opinions in a manner that suggests that they are somehow valid, without providing adequate evidence of what authority or proof supports their assertion. It is closely akin (I believe) to the coaching style of "just do it that way because I said so".

... Mikael Pietrus steals the ball in a Photograph from The Basketball Oracle ...

So what are you basing your assertion on? You said, "I really don't like personal interpretation for stats", yet it seems that is what you are doing unless you have access to a different (than NCAA) official statistician' s manual that supports your assertion. The rationale that we don't give a player a steal if he/she strips a ball and the opponent retains possession is not valid reasoning, because a steal implies a change of possession which did not occur in your rationale example.

I respect your opinion (well-intentioned) , but this is a good example of the kind of influence that fosters the spread of misinformation. We must all strive to be more informed when we make assertions in this way. Re-check your sources and rationale, if possible. Now, sometimes we base our opinions on what we think is valid information, but later turns out to be otherwise. I've also been a victim of this... we all make mistakes... nothing wrong with that (I believe)...but how you present your assertions is important.

I know this comes off as a "holier than thou" post and some might find it offensive, but I think it is important and needs to be said in this forum. Too often, coaches think that because they have been coaching for many, many years, that assertions they make should not be questioned or that they don't ever have to check the rule book or other sources. It never hurts to check your assumptions and assertions." Rick Allison from LoneStar Basketball Academy.

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2009 eBA Best Basketball Clip Candidate

' Liquid Freedom '

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Basketball Statistician's Digest:
The proper application of Basketball Statistical Analysis

From Pro Basketball News/ By David Friedman
Download source here: ' The proper application of Basketball Statistical Analysis '

"... Morey tells Lewis that in basketball there can be, as Lewis phrases it, "a tension ... between the interests of the team and the interests of the individual." This does not exist so much in baseball or football. "There is no way to selfishly get across home plate" is the analogy Morey uses; in contrast, Morey says that when he worked for the Celtics the team had a point guard who would not pass the ball to a particular player, something that would not necessarily negatively affect that point guard's statistics but definitely negatively affected the team. ..."

"... Morey uses an adjusted plus/minus system as one analytical tool to evaluate players. Plus/minus simply records the point differential when a player is on the court versus when he is off the court, so the number can be "noisy" due to the impact that the other nine players have on the game but Morey uses certain methods that he will not disclose in order to get rid of a lot of the "noise." ..."

"... It cannot be emphasized strongly enough that Morey is not merely looking at spreadsheets and randomly assigning arcane values to certain combinations of numbers; statistics give him an indication of what to look for when he watches game film but he still has to watch game film to determine why players are putting up the numbers they do and to figure out what exactly those numbers mean. ..."

"... In other words, Morey appears to understand the limits of a purely mathematical approach to the game and thus uses numbers to confirm what his eyes tell him -- and vice versa. This is a completely different approach from the one taken by far too many stat gurus who are so enamored with their formulas that they dismiss the importance of actually watching games -- perhaps because they are in fact not truly capable of watching basketball games with any real understanding of what is happening on the court. ..."

Read more in Pro Basketball News

To read Today's 'Press Clippings' in Spanish, click above on the 'Español' tab or click here: 'El Scouting ~ Cómo Conocer al Rival y a Nuestro Equipo' por Miquel Ballester Ferrer

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Basketball Statistician's Digest: About Measuring Players

The central objective of Basketball analysis is to try to find a way to measure the value of individual players. The form that this usually takes is to look at each statistic, and assign them particular values. If a player scores 20 points, that’s worth so much. Each assist is worth so much, etc. And at the end, you add up all the numbers to get a value.

Meanwhile, in any case, we are going to analyze team values, for a few reasons. First, because the game is played at a team level. It doesn’t really matter how any individual player does—results are determined by how the team does.
Second, it’s hard to tell how important someone’s assists were, without looking at how the rest of the team performed.

By looking at the team level first, those effects are automatically factored in. And lastly, they’re easily available online and provide large enough samples to be statistically significant.

Photograph: Day Life

The most necessary statistic for any additional analysis, is the number of possessions a team gets in a game. Points scored doesn’t tell the whole story, because different styles of play will lead to different numbers of possessions.

If a team play slow-down ball, almost running the shot clock to zero each possession, then there will be fewer total possessions in the game. Essentially, this shortens the game, since the real length of the game in practical terms is how many possessions each team gets.

A basic misconception in analysis and broadcasting, treat as equivalent points scored and points given up with offensive and defensive quality, without properly normalizing for possessions.

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

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FIBA U19 World Championship ~ Auckland, New Zealand

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Basketball Statistician's Digest:
Throw-in: Official or Scorekeeper Error

"... Team A is entitled to a throw-in under the alternating possession rule. An official and/or the scorekeeper makes an error and the ball is erroneously awarded to team B for the throw-in. Rule ? How we register this situation ? ..."

Photograph: from Southwest High School Basketball

Rule's Fundamental= The team that does not obtain control of the ball on the jump ball at the beginning of the game will be awarded the ball for a throw-in from out-of-bounds at the place nearest to where the next jump ball situation occurs.

Case Study= Once the ball touches or is touched by a player on the court, the error cannot be corrected. Team A does not lose its alternating possession throw-in opportunity as a result of the error and is entitled to the throw-in when the next alternating possession situation occurs.

eBA Basketball Statistical Registration= Nothing to report at the stats sheet, but the "one possession difference" because of the refs error, must be registered at the "play-by-play" report.

This topic is extended in the Statistics and Statisticians Board in the eBA Forum and the terminology is included in the eBA Basketball Encyclopedia.

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Basketball DVD Review:

"Explosive Finishing Moves for Basketball"
By Dorian Lee

Product Description
Advanced Basketball Trainer Dorian Lee's Explosive Finishing Moves gives you over 40 ways to finish the play.

Dorian covers a multitude of ways to finish including: Runners, Floaters, Reverse Lay-Ups, Pro Hops, Spins, and Transition Moves.

As a bonus, Dorian shares his "Hang Time" secrets for hanging in the air longer to finish the play.
The moves on the DVD will challenge you to be able to finish with either hand, from various angles, and off one or two feet.

Explosive Finishing Moves will give you an arsenal of moves to use when finishing the play that will always give you an option to score with.

Read More at the eBA Basketball DVDtec.

 • Actors: Dorian Lee
 • Region: All Regions
 • Format: Closed-captioned, Color, DVD-Video
 • Language: English
 • Number of discs: 1
 • Studio: Hoops King.com
 • Run Time: 60 minutes

Read more about eBA Best Sellers in English and Spanish
in the Books & DVD Sections of the ...

eBA Portal, the eBA Blogs, the eBA Store, and at the eBA Library

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Basketball Statistician Sunday's Digest:
Are the Deflections an Indicator of Good Defense ?

Some coaches take stats of the deflections. More often than not, the player with the most deflections at the end of the year is usually the player who is named the team top's defensive player.

Deflections may never find their way into the official box score statistics, but it is found at our eBA Basketball Statistics Analysis System and you can bet that coaches understand their importance !

... Manu Ginobili deflects a ball in a Photograph from Sports Illustrated ...

About the Concept= When we speaks about deflection, we refers the action of causing any pass to stray from its intended course, without getting yet the ball possession.

eBA Basketball Statistical Registration= The example given of the 24 seconds is a good one for a deflection "Forcing an opponent Turnover". The register of the deflections forcing an opponent turnover is deeply developed here eBA Encyclopedia > Articles > Deflections.

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

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2009 eBA Best Basketball Clip Candidate

' Is Kobe Bryant Real ? '

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Basketball Statistician's Digest:
Statistics and Basketball for Beginners

From Baseline Scenario By James Kwak
Download source here: ' Statistics and Basketball for Beginners '

"... I think that the general difficulty that many people have in understanding statistics is an important problem, because it leads people to misinterpret the world around them. ..."

"... But in the second segment, they take up that favorite example of statisticians everywhere: There are no streak shooters in basketball! (And if you think there are, you are just a weak creature of habit and prejudice who refuses to accept the pure truth of numbers.) ..."

"... This story has become such an article of faith in the “statistics are right/intuition is wrong” camp that it bears a little examination. ..."

"... However, they actually prove something more modest: that the chances of a given player making a given field goal attempt are not related to the success or failure of his immediately preceding attempt or attempts. I can raise some quibbles here, like the fact that they don’t look at how much time passes between those shot attempts; if you hit two shots in the second quarter and then miss one in the fourth quarter, that’s the same to them as if you shoot on three consecutive possessions. (I believe some of their analyses even span separate games.) ..."

"... So I will buy the conclusion that data about recent field goal attempts cannot be used to predict the outcome of the next field goal attempt. This is an analog to the efficient market hypothesis – you cannot predict which way an asset price will go based on its recent price movements. But I don’t think this proves that basketball players don’t shoot better in some periods and in some games than in others. ..."

"... When it comes to basketball, it strains belief to think that your ability to shoot the ball is a constant, day after day, play after play, all the time. For one thing, sometimes you are tired, or sick (and few of us can replicate Michael Jordan’s “flu game”), or injured, or distracted; the idea that this wouldn’t affect your shooting seems preposterous. If your actual field goal attempts end up looking like random patterns, then I think that’s more likely a result of the complex and un-modelable way in which you, your team, and the other team adapt to each other. ..."

Read more in Baseline Scenario

To read Today's 'Press Clippings' in Spanish, click above on the 'Español' tab or click here: 'El uso del video en el baloncesto' por Frederic Sarre (Francia)

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tags:  basketball  ~  statistician's digest   ~  basketball analysis  ~  statistics  ~  Jeff Ely
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Basketball Statistician's Digest: Team Possessions Responsibly Percentage

How to calculate the Individual % Team Possessions ( % team possessions responsibly for when a player is on floor ) from box scores or from play by play info ?

First of all we must calculate the possessions: making a search for "possessions" in this eBA Blogs and reading the "Possessions Analysis" exposition at eBA Clinics for the individual possession formula, we can find that a typical formula to calculate the basketball possessions is:

Possessions=FGA Field Goals Attempted - OR Field Goals Attempted +TO Field Goals Attempted +0.4* Free Throws Attempted
(the eBA System applies the factor UP-TO-THE-LINE instead of the .44 FTA factor)

Photograph: Miguel Volcan Sánchez' Basketball

Now we can make an estimation of the % team possessions responsibly for when a player is on floor from their minutes and the team rate of possessions.

% = individual possessions / team possessions / individual minutes * team minutes / 5

As in every statistical calculation with the 'time played' element included, you'll have problems for low minute players.

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

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July Cover ~ Basketball Beautiful Faces:
From the NBA Atlanta Hawks Dance Team !

Photograph: Every Joe

Our Basketball Beautiful Faces of July 2009 Cover

... Atlanta Hawks dance team member acts as a silent cheerleader ...

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