A team’s ability to increase its number of possessions, gives it a greater chance to score points and win games. Offensive rebounding is a main factor for a team to gain possessions.
This is measured by offensive rebounding percentage or the percentage of offensive rebounds a team grabs over the course of a game or season.
OR% = Offensive Rebounds / (Offensive Rebounds + Opponent's Defensive Rebounds)
For example, over the entire 2018-2019 season Baylor’s Offensive Rebounding Percentage was 37.3%.
The Bears grabbed 446 offensive rebounds to their opponents 748 defensive rebounds.
OR% = 446 / (446 + 748) = 0.373 * 100
This means on a Baylor missed shot or free throw, the team rebounded the ball around 37% of the time.
Similar to how a team forces turnovers, defensive rebounding can limit a team’s chance to earn more possessions.
For example, Baylor posted a defensive rebounding rate of 28.8%. The Bears pulled down 835 defensive rebounds and its opponents snagged 338 offensive rebounds.
Opponents’ OR% = 338 / (338 + 835) = .2882 * 100)
This means Baylor’s opponents only grabbed an offensive rebound on about 29% of its misses.
Rebounds are measured differently across all of college basketball. KenPom and other analytics sites compute percentages that don’t include team rebounds.
Team rebounds are totaled by specific schools and other entities. This means there can be a slight difference between rebounding totals depending on the source of the box score or statistics.
What is a team rebound?
If a team misses a shot, a rebound is recorded. Not every missed shot falls into the possession of an individual player.
For example, a missed shot can go out of bounds. In this situation, a team rebound is given to the team that was defending the missed shot.
This is common if a team shoots an airball, a missed shot goes over the backboard, or 2 or more players from the same team gain possession of the ball.