Determining the center foot of the player with the ball is the key to judge whether the player with the ball takes the ball away. Therefore, we must seriously study and study the rules of holding the ball, especially to master the method of determining the center foot of the ball-holding player and the rules of moving the ball. The way to determine the center foot is: if a player touches the ground with both feet, he can use either foot as the center foot. The moment one foot is lifted, the other foot becomes the center foot. If the player catches the ball while moving or dribbling, if one foot touches the ground and the other foot touches the ground, then the original foot should become the center foot; Players can jump up the foot that touches the ground, both feet land at the same time, and then neither foot is the middle foot. If a player catches the ball while moving or dribbling, if both feet are off the ground and both feet are on the ground at the same time, either foot can be used as the middle foot. At the moment when one foot is lifted, the other foot becomes the central foot; If both feet touch the ground successively, the foot that touches the ground first is the center foot. If one foot touches the ground, the player can take off with that foot and touch the ground with both feet at the same time, then neither foot is the center foot.

After the central foot is determined, you must master the rules and requirements of holding the ball.

In the game, when a player passes or shoots, the center foot can be lifted, but it can't fall back to the ground before the ball leaves the hand. At the beginning of dribbling, the player can't lift the central foot in front of the owner; After stopping the ball, when both feet are not the center foot: players can lift one foot or both feet when passing or shooting, but they can't fall back to the ground in front of the owner of the ball; If a player starts dribbling, neither of his feet can be lifted in front of his master. If the player who holds the ball violates the rules of holding the ball, it is illegal to take it away.

2. It's too far away from the player who moves with the ball.

The referee on the spot is too far away from the player holding the ball. On the one hand, it is difficult to quickly determine the central foot of the ball-holding player, on the other hand, it is difficult to see the movements of the ball-holding player clearly, which makes mistakes easily and misses the judgment of holding the ball. Therefore. On-the-spot referee should take the initiative to move, shorten and choose the distance and position from the moving player with the ball.

3. I was confused by the fake action of the player with the ball.

When the referee observes the movement of the dribbler on the spot, he should first pay attention to the movement of the dribbler below the knee joint, and can't just watch it or watch it first and then. Before observing other movements of the ball-bearer, it is necessary to observe the movements below the knee of the ball-bearer. This is the observation principle for the referee to judge whether the player with the ball has taken the ball away.

It is one of the most prominent characteristics of excellent basketball players to make all kinds of fake moves under the basket, combined with stride and upper body, in an attempt to deceive their opponents and achieve the purpose of effective attack. When observing their ball-holding, the on-site referee can neither judge it as illegal ball-holding because of the long stride of the ball-holding players or the clumsy and uncoordinated posture of the ball-holding players, nor can it be regarded as legal ball-holding because the ball-holding players move their central feet quietly or generously when doing various feints. It is another important factor to observe the fake action of the player with the ball, but don't be confused by the fake action of the player with the ball.

4. Poor predictability

In order to accurately and timely judge the foul of holding the ball, it is necessary to understand and master under what circumstances the players with the ball are easy to hold the ball. This is the experience of judging whether the player with the ball moves with the ball.

In the game, usually under the following circumstances, players with the ball are prone to foul with the ball:

[1] When the player with the ball is looking for a shooting opportunity under the basket and is blocked by the defender, the player with the ball uses a fake action;

[2] The dribbler runs too fast, and the player who meets legal defense on the way must be forced to stop urgently;

[3] When the dribbler breaks through, he is suddenly blocked by the defender.

[4] When the player with the ball is suddenly "caught by the defender" and the player with the ball turns left and right to look for a passing opportunity in order to get rid of "caught by the defender"

[5] When the player holding the ball is in a favorable position and wants to quickly break through the goal with the same step;

[6] The attacker turns his back to the attack direction, moves quickly, picks up the ball, turns around and dribbles, and suddenly meets the defender who has already stood in the defensive position.

Whenever the referee encounters the above situation at the scene, he should be prepared in thought and follow up in action, so as to create good conditions for accurately judging the foul with the ball.

1. Competition method

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 competition is divided into four stages, each stage 12 minutes, with a 5-minute break and a 10 minute break. At the end of the game, if the two teams have the same points, 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 for shooting outside the three-point line, and the penalty 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

It can be roughly divided into (1) common violations, such as walking with the ball, dribbling twice, kicking the ball or hitting the ball with your fist. (2) jump ball violation; (3) Jump foul: Before the jumper touches the ball, people other than the jumper are 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, and letting the ball out of bounds.

Player out of bounds: The ball is out of bounds when the player touches the area outside the sideline or string 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.