A team's ability to increase its number of possessions, gives it a greater chance to score points and win games. Offensive rebounding is the 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 2015-2016 season Baylor's Offensive Rebounding Percentage was 41%.
The Bears grabbed 467 offensive rebounds to their opponents 697 defensive rebounds.
OR% = 467 / (467 + 697) = 0.412 * 100
This means on a Baylor missed shot or free throw, the team rebounded the ball 41% of the time.
Similar to how a team forces turnovers, defensive rebounding can limit a team's chance to earn more possessions.
For example, in Baylor's 2016 NCAA Tournament First Round game against Yale, the team's OR% was 33%.
Baylor grabbed 14 offensive rebounds and Yale snagged 28 defensive rebounds.
OR% = 14 / (14 + 28) = .333 * 100)
A team's ability to shoot or make shots also impacts offensive rebounding percentage.
For example, in the 2016 NCAA Title Game, Villanova grabbed 2 offensive rebounds. North Carolina snagged 20 defensive rebounds.
Villanova's OR% was 9%.
OR% = 2 / (2 +20) = .090 * 100
Villanova made over 50% of their shots explaining their low percentage of offensive rebounds.
Rebounds are measured differently across all of college basketball. KenPom percentages 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.