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Basketball Basics: How the Game Works for First-Time Viewers

Basketball's continuous action can be hard to follow without knowing a few underlying rules. These basics explain most of what you'll see happen in a game.

Shots are worth 1, 2, or 3 points

A free throw (awarded after certain fouls) is worth 1 point, a field goal from inside the three-point line is worth 2 points, and a shot made from behind the three-point line is worth 3 points.

NBA games are split into four 12-minute quarters

That's 48 minutes of game clock total, not counting stoppages, timeouts, and breaks between quarters, which is why an actual NBA broadcast typically runs well over two hours.

A shot clock forces teams to attempt a shot within a time limit

The NBA uses a 24-second shot clock: if the offense does not attempt a shot that hits the rim within that window, possession turns over to the other team, which keeps the pace of play fast.

Players are limited in how many personal fouls they can commit

A personal foul is illegal contact with an opponent, such as pushing, holding, or excessive contact while guarding. In the NBA, a player who commits 6 personal fouls in a game is disqualified, or "fouled out," and cannot continue playing.

Each team has 5 players on the court, generally in 5 roles

Traditionally: point guard (primary ball-handler and playmaker), shooting guard, small forward, power forward, and center, though modern basketball increasingly blurs these roles.

Enough team fouls put the other team "in the bonus"

Once a team accumulates a set number of fouls in a period, the opposing team starts shooting free throws on subsequent non-shooting fouls instead of simply getting the ball back, discouraging excessive fouling late in close games.

Violations are different from fouls

Traveling (taking too many steps without dribbling) and double-dribbling (stopping and restarting a dribble) are violations that simply turn the ball over, rather than fouls that involve illegal contact with an opponent.

A tied score at the end of regulation goes to overtime

If the score is level after four quarters, teams play additional overtime periods β€” 5 minutes each in the NBA β€” until one team leads at the end of a full extra period.

NBA rules are not the only version of basketball

College basketball uses different timing: men's NCAA games are played in two 20-minute halves with a 30-second shot clock, while women's NCAA games use four 10-minute quarters, also with a 30-second shot clock β€” both notably slower-paced than the NBA's 24-second clock. FIBA international rules differ further still, including the exact three-point line distance.

Why the shot clock matters so much to pace

Before shot clocks existed at any level, a leading team could simply hold the ball indefinitely to run out the game clock. The shot clock, introduced to prevent stalling, is a major reason basketball tends to feature far more possessions and scoring than lower-scoring team sports.

Frequently Asked Questions

How many players from each team are on the court at once?

Five players per team are on the court at a time, with additional players available on the bench as substitutes.

How far away is the three-point line?

It varies by level: the NBA line is roughly 22 to 23.75 feet from the basket depending on the spot on the floor, while college and international (FIBA) three-point lines are set at different, generally shorter distances.

What's the difference between a foul and a violation?

A foul involves illegal physical contact with an opponent and can result in free throws. A violation, like traveling or a shot-clock expiration, is a rules infraction that simply turns the ball over without any physical contact involved.

Does college basketball follow the exact same rules as the NBA?

No β€” notable differences include game structure (halves vs. quarters), shot clock length, and how many personal fouls disqualify a player, among other rule variations between the NBA, NCAA, and international basketball.