This advanced statistic is used by teams in the NBA to track how many of the available defensive rebounds a player or the team as a whole is grabbing during a game. This statistic is calculated by dividing the total number of defensive rebounds secured by the player/team by the total number of rebounds available. Multiply the result by 100 to get a percentage.
A player's defensive rebounding percentage is important because it illustrates exactly how often the player is able to rebound the ball. Defensive rebounding is important because it limits the number of scoring opportunities for the offense. If a player is securing 100% of the defensive rebounds, the opposition is not getting any second chance scoring opportunities. Typically, an individual defensive rebound percentage will be closer to 50%, while the team version of the statistic should venture closer to 100%. The defensive rebound percentage and the offensive rebound percentage for opposing teams should balance out.