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01 Апреля 2008 Журнал "FIBA Assist Magazine"

Виды спорта: Баскетбол

Рубрики: Профессиональный спорт

Автор: Woods Ernie

Statistically Evaluating Defensive Performance

Statistically Evaluating Defensive Performance

Statistically Evaluating Defensive Performance

One of the most winning coaches in the state of Washington, he is lecturer at clinics in the US and abroad. He was also scout for NBA teams. Since many years he applies the technology to basketball; he has a web site (hooptactics.com) and he is also designer and consultant for many others basketball web sites.

Game statistics are a vital tool in analyzing performance, tendencies and preparation for future games. However, most coaches only scrutinize boxscore reports offensively, and base their defensive evaluations predominately on subjective observations.

DEFENSIVELY WHAT TO LOOK FOR IN A BOXSCORE

Opponent Field goal percentage

Field goal percentage is probably the most important single statistic in winning or losing. Although, the percentages will vary according to the level of play, to be successful, you will want to hold the opponent’s field goal accuracy under 45% and their three point percentage to less than 33%. Just by having a hand up on shots will reduce the shooting percentage almost 10%.

Defensive Stops

Defensive stops are also a vital statistic and are the number of possessions in which the opponent does not score. If the box score does not show the number of defensive stops, they can be quickly determined by adding the number of defensive rebounds and opponent turnovers.

Defensive Rebounding Percentage

Defensive rebounding percentage is what is important, not the number of defensive rebounds. In fact, looking at just the number of defensive rebounding can be very misleading and will vary according to the number of opponent missed shots. Defensive rebounding percentage is determined by dividing the number of defensive rebounds by the sum of defensive rebounds and the opponent offensive rebounds. Defensive rebounding goal should be 67%+.

Opponent Offensive rebounds

Similar to the number of defensive rebounds, looking at just the number of offensive rebounds allowed is not a good indication of a team’s rebounding performance at all. However, the number of opponent’s offensive rebounds, does have a direct correlation in determining defensive rebounding percentage.

Opponent Individual Offensive Rebounding

Opponent individual offensive rebounding totals are a very important halftime statistic. By scanning the offensive rebounding column and determining specifically which of the opponent’s players need to the game.

Points Allowed Off Opponent Offensive Rebounds

Although defensive rebounding percentage is very important, an even more important statistic is the actual number of points scored by the opponent on second efforts. Offensive rebounds can be simply erased or cancelled by increasing the defensive intensity and focus and making a defensive stop. Therefore, the only offensive rebounds that hurt are the ones in which the opponent scores.

Opponent Turnovers

The number of opponent turnovers can be used in assessing defensive performance. However, the percentage of ball handling error would be better. The number of opponent turnover’s divided by the number of defensive possessions since the tempo of the game has a direct bearing on the number of turnovers. Defensive goal should be force the opponents into turning the ball over 20% of the time. Caution: forcing turnovers has little value, if you do not capitalize and score off them. To be successful you must finish (score).

Personal Fouls

The number of personal fouls is usually a good indication that defenders are out of position and reaching. Points out specific individual defenders that are not moving their feet to establish good defensive position. Cutting down the opponent’s free throw attempts definitely impacts the out come of the game.

Defensive Transition

Do not forget to analyze the number of points allowed after turning the ball over. Making a defensive stop after a turnover is a really big play (RBP) and can determine the outcome of the game. The only turnovers that hurt are the one the opponents score on! The goal for defensive recovery should be to allow less than one point per turnover.

Points/Possession Allowed

The total points allowed is another one of those miss leading numbers. Although, the media, erroneously, uses points allowed in ranking defensive performance, the number of points allowed is meaningless statistic by itself. Points per possession allowed is a more accurate way to determine defensive performance. By accounting for the number of offensive possession it takes into account the tempo of the game. You want to limit your opponent to under 0.9 points per possession.

Blocked Shots

Unless you are blessed with a dominate shot blocker, this is one statistic you really do not want to win. Block shots are usually an indication of poor defense, since most block shots occur on dribble penetration. Block shots are also worthless, if they go directly out of bounds or if the opponent maintains possession. To be successful, block shots must result in ball possession.

Offensive Charges Taken

Taking an offensive charge is a really big play (RBP). Really big plays are plays that can actually determine the outcome of a game. In taking an offensive charge, it not only saves a basket, but just as important, gives the offensive player a person foul.

Steals/Defensive Assists

Steals are primary an individual statistic. It is much better to track defensive assists. Defensive assists are credited when a defender’s action forces an opponent turnover, such as a deflection that leads to a steal or putting pressure on the dribbler that causes them to double dribble or carry the ball or make a bad pass. Defensive assists are now a mandatory stat in the NBL of Australia.

Opponent Shot Charts

Shots by location can quickly show the opponent’s shot selection. If they are a predominately right side or left sided or if they are mostly three point shooters or shooting in the paint along with how many layups shots were allowed. Note: with computer programs, such as Cyberports USA, shots can even be rated as easy, open, contested or bad. Obviously, on defense, you want the majority of shots to be contested or bad and never giving up an easy shot.

Помимо статей, в нашей спортивной библиотеке вы можете найти много других полезных материалов: спортивную периодику (газеты и журналы), книги о спорте, биографию интересующего вас спортсмена или тренера, словарь спортивных терминов, а также многое другое.

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