A statistic in basketball, defined as the average number of blocks a player makes per game. This statistic can be calculated by first selecting a group of games on which to base the measure. The most common time span is season. Once decided, divide the total number of blocks made during the chosen span of games by that number of games. This statistic only began being tracked in the NBA during the 1973-74 season. It is helpful to coaches looking to gain a more complete understanding of a player's defensive contributions.
A block is awarded to a player when he successfully prevents a shot from going in by rejecting, or blocking, an attempted shot. In order for a block to be recorded, there must have been a shot attempt. One cannot block a pass, that is called a steal. There are many players, past and present, who are considered skilled in this area. Bill Russell is always considered the best, though no statistics were tracked while he was a pro. More recently, Dwight Howard is considered one of the best blockers in the NBA. Although blocks are an exciting part of the game, and blocks per game is an important statistic, most coaches know there are many other important aspects of successful defense and therefore do not concentrate much on this particular measure.