What is a Blocked Shot in Basketball? (Rules & Goaltending)

What is a Blocked Shot in Basketball?
In basketball, the most exciting defensive play is undoubtedly the Blocked Shot (or simply a “Block”). There is nothing that fires up a crowd more than a defender swatting the ball away just as it’s headed for the hoop.

However, blocking a shot requires perfect timing and a deep understanding of the rules. In this guide, we will break down what counts as a legal block and where the line is drawn between a great play and a violation.


The Definition: What Counts as a Block?
A blocked shot occurs when a defensive player legally touches the ball while it is in the air on a field goal attempt, preventing it from entering the basket.

To be a legal block:

  1. The defender must touch the ball before it starts its downward flight toward the rim.
  2. The defender must not make significant illegal contact with the shooter’s body (which would be a shooting foul).

Block vs. Goaltending: Know the Difference
This is where many fans get confused. If a defender touches the ball too late, it is called Goaltending, and the points are automatically awarded to the offensive team.

It is Goaltending if:

  • The ball is already on its downward path toward the basket.
  • The ball has already touched the backboard while moving toward the rim.
  • The defender touches the rim or the net while the ball is on the rim.

The Legends of the Block
Shot-blocking is a skill that requires height, wingspan, and incredible “IQ” for timing. Here are the all-time greats:

  • Hakeem Olajuwon: The NBA’s all-time leader with 3,830 blocks. He was known for his “Dream Shake” on offense, but he was a nightmare on defense.
  • Dikembe Mutombo: Famous for his finger wag after every block, he finished with 3,289 blocks.
  • Mark Eaton: Holds the record for the highest blocks-per-game average in a single season (5.6 blocks per game in 1984-85).
  • Victor Wembanyama: A modern-day phenom whose incredible height and speed are redefining what a shot-blocker looks like in the modern NBA.

See it in Action: The Greatest Blocks Ever


🏀 Expand Your Basketball Knowledge
Blocking a shot is the ultimate defensive stop, but sometimes the ball is recovered after the miss.

Read Next: What is a Rebound in Basketball? (Learn what happens when the ball comes off the rim).