The offensive rebound: position won before the shot leaves the hand

Height matters less than position

A substantial proportion of rebounds are collected at or below head height, which means the contest is decided by who is standing in the right place. Jumping ability determines who wins the small number of balls that are genuinely contested in the air, which is not where most possessions are decided. The player who has established position between his opponent and the basket will collect the ball without needing to out-jump anybody.

This is why rebounding totals correlate poorly with height once players are past a certain threshold, and why smaller players can rebound well. The skill involved is a positional and physical one rather than an athletic one, which is why it improves with experience rather than declining with age.

The box-out as a contest for space

Boxing out means making contact with the opponent and then holding a position between him and the basket while the ball is in the air. The contact has to be established early, because a player who turns to find his opponent after the shot has already lost the initiative. The defender is at a structural disadvantage, since he must locate his opponent while the opponent already knows where he intends to go.

That asymmetry is why offensive rebounding succeeds as often as it does despite the defence starting closer to the basket. A defender who watches the flight of the ball rather than his opponent has conceded the position before the ball has come down.

Where the ball actually goes

A missed shot does not rebound randomly, since the angle of the shot and the point of contact with the rim determine the direction predictably. A shot from the corner tends to rebound toward the opposite side, and a shot from the middle of the floor rebounds toward the shooter more often than not. Long shots produce long rebounds, which land beyond the players who have positioned themselves close to the basket.

Players who understand these tendencies position themselves for the likely rebound rather than for the nearest available space. This is why the guard who follows his own shot collects rebounds that appear to have been fortunate.

The cost of going to the glass

Every player committed to the offensive glass is a player unavailable to defend the transition that follows a defensive rebound. That trade is the central question in offensive rebounding, and different sides answer it differently based on how dangerous the opponent is in transition. Committing one player is close to free, since a single crasher can usually recover, while committing three changes the shape of the following possession.

The decision also depends on the shot, because a shot with a low chance of going in is worth crashing and a good shot may not be. Sides that send everybody or nobody are ignoring a decision that can be made shot by shot with the information available.

The tip rather than the catch

A player who cannot secure a rebound cleanly can still influence the possession by tipping the ball away from the opponent or back toward a teammate. Tipping requires only one hand and can be done from a position that would not permit a catch, which extends the range of players who can contribute. A tip that keeps the ball alive resets the contest, and the second contest is frequently more favourable because the defence has relaxed.

The risk is that an uncontrolled tip sends the ball toward the opponent, which converts a contested rebound into a clean one for the other side. The judgement is whether the ball can be secured, and players who reach for a catch they cannot make lose possessions they could have extended.