This post RESUMES
the topic.
Being designed to collect as much
information as possible about a game, the Possession Scoring Record System let us
calculate
probabilities of scoring for both teams over equal number of trials. Focusing on the
player with the ball, following the ball from player to player until the ball is turned
over to the opposition through a shot attempt or turnover.
Let us follow an example: team A with ball possession,
can score, commit a turnover, or not get a rebound, the team B gets the ball. For each
opportunity that team A get to score, team B also get a chance. This system sees by
getting an offensive rebound, this keep alive its opportunity to score rather than
producing another chance. Registering in this way, possessions are same number for both
teams in a game. At the same time as each team has the same 40 / 48 minutes in a game to
outpoint its opponent., each team has the same approximately 85 (in 40 minutes) / 100 (in
48 minutes) possessions in a game to outpoint its opponent.
In a non-overtime game, it is possible that each team will have as two more possessions
than its opponents: see the reference to “1st. and last possession” at the eBA basketball
Statistics Analysis System.
As was mentioned earlier, for this schools of thought on possessions, this formula is
assuming that an offensive
board "continues the possession", or "keeps the possession alive".
On the second school of thought, including the eBA System, prefer to think of offensive
rebounds and securing another possession. In which case total rebounds would be used
instead of defensive in any possession formula.
A scoring
possession is defined as a possession on which one or more points are scored. Then
– and this is another topic – we define the ratio of scoring
possessions to total possession as “floor percentage”. Another formulas (
see “Formulas eBA’
) to study about this topic are:
Team
Possessions = FGA - Oreb + TO + Up to Line Made (see the eBA System)
Team Scoring
Possession = any possession on which the team scores at least 1 point
Individual
Floor Percentage = the ratio of a player's scoring possessions to his total
possessions
Individual
Scoring Possessions = contribution to a team scoring possession through field
goals, free throws, assists, and offensive rebounds.
Individual
Possessions = sum of a player's scoring possessions, missed shots and free throws
that are rebounded by the defense, and turnovers. ”.
This
summary resumes this topic and will be completed at the "Formulas" chapter of
the eBA
basketball Statistics Analysis System. Another basketball rules topics
you'll
find at the basketball
Stats Discussions section of our eBA
Stats.com site.
 Jorge Dunwhilli - ebastats - the basketball statistics forum
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