There are five people in a team, one of whom is the captain and at most seven substitutes, but the number can be increased according to the organizer. The game is divided into four sections, each section is 10 minutes, and the NBA is 12 minutes (20 minutes for all-star rookie, 2 sections for * * *). There is a 5-minute break between sessions, NBA 130 seconds, halftime 10 minutes, and NBA 15 minutes. At the end of the game, if the scores of the two teams are the same, overtime will be played for 5 minutes. If the score is still the same after 5 minutes, a 5-minute overtime will be played again until the tie is broken.
2. Fraction type
After the ball is thrown into the basket and approved by the referee, it is counted as a score. 3 points can be scored for the inner input of the branch line; You can get 3 points if you put it on the outside of the 3-point line, and the ball that you step on the 3-point line with your heel or toe is regarded as a 2-point ball. Got a free throw 1 point.
3. Way of proceeding
At the beginning of the game, each team pushes a jumper to the central jumper area, the referee throws the ball, and the jumpers from both sides start the game.
4. Player replacement
The substitution of each player should be completed within 20 seconds, and the number of substitutions is unlimited. The time to exchange players is when someone fouls, fights for the ball, calls a timeout, etc. The referee can temporarily suspend the timing of the game.
5. Free throw
Each player has four chances to be allowed to foul, and the fifth time is all out (6 times in NBA). And cannot be played again in the same game. Free throw is shooting when no one can stop or defend it. It is a punishment for the offending party and an opportunity for the opposing party. Stand behind the free throw line and shoot within 10 second after receiving the referee's ball. After shooting, you can't cross the free throw line before the ball touches the basket.
lawbreaking
Generally, it can be divided into (1) common violations, such as walking with the ball, dribbling twice (double belt), kicking the ball (foot ball) or hitting the ball with the fist. (2) Jump ball violation: Before the jumper touches the ball, no one except the jumper is allowed to enter the central area of the jump ball.
Basic rule 2
24-second rule: the attacker must shoot within 24 seconds of holding the ball (24 seconds for NBA, CBA, CUBA, WNBA and 35 seconds for NCAA).
8-second rule: the team must control the ball from the backcourt and make the ball enter the frontcourt (the opposing half) within 8 seconds.
Five-second rule: after holding the ball, the player must throw the foul ball within five seconds, and the FIBA rules stipulate that the free throw must also be shot within five seconds.
3-second rule: divided into offensive 3 seconds and defensive 3 seconds. Attack for 3 seconds: the attacking player shall not stay in the 3-second zone for more than 3 seconds; Defensive for 3 seconds: When the offensive player corresponding to the defensive player is not in the 3-second zone or the edge of the 3-second zone and completely gets rid of the defensive player, the defensive player shall not stay in the restricted area for more than 3 seconds.
Personal foul: a foul caused by physical contact with an opponent.
Technical foul: A player or coach is convicted of a foul for poor performance, such as an argument with a referee.
Disqualification foul: a foul action made by a player that does not reflect the spirit of the athlete, such as hitting someone. When this happens, the player should be sent off immediately.
A player fouls 5 times: No matter whether it is a personal foul or a technical foul, a player * * * fouls 5 times (6 times in NBA) and must leave the field. No more games are allowed.
Foul: Violation of rules, neither personal nor technical. The main violations are: illegal dribbling, taking the ball away, 3 seconds violation, letting the ball out of bounds, kicking the ball with your feet.
Player out of bounds: The ball is out of bounds when the player touches the boundary or the area outside the boundary with the ball or the ball itself. The ball doesn't go out of bounds in the air until it hits the line or out of line.
Interference ball: When the shot ball falls to the basket, neither player can touch the ball. Defenders must not touch the ball when it is in the basket.
After the ball hits the chessboard, the opponent must not touch the ball until it falls.
Players closely watched by defenders: Players closely watched by defenders must pass, dribble or shoot within 5 seconds, otherwise their team will lose possession of the ball (which is not stipulated in NBA rules).
Ball back to the backcourt: if the team has moved the ball from the backcourt to the frontcourt, the team players can no longer move the ball across the center line and transport it back to the backcourt.