The above two guys have introduced so much. If you want to know more, just look at the website. The following is the part.

Introduction to NBA

NBA is the abbreviation of National Basketball Association.

National professional basketball league

Chairman: david stern.

NBA official website: www.nba.com (as long as you know English, you will get the latest information).

Existing team:

eastern conference

Atlantic Division: new york Knicks, New Jersey Nets, Boston Celtics, Toronto Raptors, Philadelphia 76ers.

Central Division: Detroit Pistons, Indiana Pacers, Cleveland Cavaliers, Milwaukee Bucks, Chicago Bulls.

Southeast Division: Miami Heat, Orlando Magic, Washington Wizards, Atlanta Hawks, Charlotte Bobcats.

Western Union

Northwest Division: Minnesota Timberwolves, Denver Nuggets, Utah Jazz, Portland Trailblazers and Oklahoma City Thunder.

Pacific Division: Sacramento Kings, Los Angeles Lakers, Phoenix Suns, Golden State Warriors and Los Angeles Clippers.

Southwest Division: San Antonio Spurs, Houston Rockets, Dallas Mavericks, Memphis Grizzlies and New Orleans Hornets.

189 1 year, in order to find a way for students to exercise in winter, Dr. James Naishmis of Springfield College in Massachusetts, USA, created basketball with two broken baskets and a substitute football, which led to today's NBA in full swing. The NBA was founded on June 6th, 1946. When it was founded, it was called BAA, which is the American Basketball Association. It was established by the owners of 1 1 ice hockey venues in order to prevent the venues from being idle outside the ice hockey competition.

NBA history

☆ 1896, the first American basketball organization, the National Basketball League (NBL), was established, but the rules and organization of basketball were not perfect at that time. After several seasons, the organization existed in name only.

☆1On April 6, 946, the American Basketball Association (BAA) was founded by Walter A. Brown, the owner of Boston Garden in the United States. When BAA was founded, there were *** 1 1 teams. Brown first proposed the high salary system and the contract system. High salary system means that professional basketball must have strong financial support, so as to keep the game at a high level. Contract system means that a player can only sign a contract with one club and set up a player reserve system to prevent players from leaving the team suddenly and causing losses.

1 65438+1October1,the competition of BAA officially started. The two sides are the Toronto Eskimos and the new york Knicks. The score was 66: 68, and the Knicks won.

☆ 1947, the Philadelphia Warriors led by Joe Fulks (averaging 23.2 points) defeated the Chicago Bucks 4-0/0 and became the first championship.

☆ 1949, with Brown's efforts, two major American basketball organizations, BAA and NBL, merged into the National Basketball Association (NBA). The NBA has 17 teams, which are divided into three divisions. The Minneapolis Lakers from NBL won the NBA championship in the first season with the help of george mikan, the No.1 center in the United States, who is 2.09 meters tall.

☆ 1950,165438+1On October 22nd, the game between Minneapolis Lakers and fort wayne Pistons set the lowest score in the NBA, 19: 18.

☆ 195 1, on March 2nd, Celtic President Brown provided Boston Garden Gymnasium for free to hold the first All-Star Game. The final score was 1 1 1: 94, and the Eastern Star won.

☆ 1952, the Best Excellence Award was established for the first time, and the first winner was Don Meniche of fort wayne Pistons.

☆ Starting from 1954, the NBA began to implement the 24-second system. After defeating the nationals, the Lakers became a team with three consecutive championships. At that time, there were only eight teams in the NBA: new york Knicks, Boston Celtics, Philadelphia Warriors (Golden State Warriors), fort wayne Pistons (Detroit Pistons), Minneapolis Lakers (Los Angeles Lakers), Rochester Royals (Sacramento Kings), Syracuse Nationals (Philadelphia 76ers) and Tri-City Blackhawks (Atlanta Hawks).

☆ 196 1 year, Chicago Packers Team (Washington Wizards) joined.

☆ 1966, Celtic completed the unique eight consecutive championships. Chicago Bulls joined the NBA and became the 10 team.

☆ 1967, a new basketball organization ABA (American Basketball Association) was established, with George Macon as the first chairman. With the participation of San Diego Rockets (Houston Rockets) and seattle supersonics Team (Oklahoma Thunder Team), the total number of teams rose to 12.

1968, Milwaukee Bucks and Phoenix Suns join.

☆ 1970, three new teams were Cleveland Cavaliers, Portland Trailblazers and Buffalo Warriors. The NBA league is officially divided into East and West.

☆ 1973, CBS bought the right to broadcast NBA games for three years for $27 million, which made NBA games appear on TV for the first time. However, because there were no conditions for live broadcast at that time, only videos could be played.

1974, New Orleans Jazz (Utah Jazz) joined. The total number of teams reached 18.

☆ 1976 but due to poor management, ABA was annexed by American NBA, and the original ABA teams Denver Nuggets, Indiana Pacers, new york Nets and San Antonio Spurs were merged into NBA. The number of teams has increased to 22. Since then, NBA has formed a monopoly on American basketball industry.

65438-0979, the NBA began to implement the 3-point long-distance shooting system. In order to avoid the disparity in strength between teams, the NBA has established an annual "NBA rookie selection and distribution system", which ranks college students who graduated in that year according to their level, and then each club selects them in turn according to the final ranking of the league and the final draw, with the latter ranking first, and each team can only choose one rookie in each round, thus ensuring that the team with the weakest strength can obtain the highest level. In order to prevent rich teams from monopolizing high-paid star players, the NBA has set a total salary limit for each team. If "high salary system" and "contract system" are the two cornerstones of NBA, then "rookie selection system" and "salary limit system" ensure the tension and excitement of NBA games, and the unpredictability of the games attracts many American fans to the basketball court. The NBA league also implements the transfer system, and NBA players can't buy or sell, so they can only be replaced by people. From the beginning of the season to 9: 00 pm on Thursday 16, the team can exchange players freely. Since then, all the players have been "frozen" until the end of the regular season. NBA transfer is the exchange of people and contracts.

☆ 1980, Dallas Mavericks joined the NBA.

1988, Charlotte Hornets (New Orleans Hornets) and Miami Heat joined the NBA.

1989, Orlando Magic and Minnesota Timberwolves joined the NBA.

☆ 1995, two Canadian teams joined the NBA, Toronto Raptors and Vancouver Grizzlies (Memphis Grizzlies), bringing the number of NBA teams to 29.

☆ In 2004, the Charlotte Bobcats joined 30 teams.

☆ In 2006, American International Group, Google, Oracle Bone Inscriptions, Yahoo, Telstra, Bunny (Network) Group, British Shell Oil, Three Kingdoms King, Philips, Chiron Bubble and Citibank became the first-class sponsors of the NBA.

match

NBA is the league of American professional basketball teams, and its rules are necessarily different from FIBA rules formulated by the International Amateur Basketball Federation.

(A) the rules of the game

1. Stadium specifications

The court in NBA is 94 feet (28.65 meters) long and 50 feet (15.24 meters) wide. The spacing is measured from the inner edge of the boundary line with a line width of 2 inches (5.08 cm). Rectangular penalty areas are marked at both ends of the stadium, which are 19 feet (5.79 meters) long and 16 feet (4.88 meters) wide. The two ends of the court are marked with 3-point shooting lines. The drawing method is as follows: draw two lines parallel to the sideline from the baseline, each of which is 3 feet (0.9 1 m) away from the sideline and intersects with an arc with a radius of 23 feet 9 inches (7.24 meters) centered on the center of the basket. The arc radius of WNBA is 19 feet 9 inches (6.02 meters). The radius of the circle is 6 feet (1.83 meters). The radius of the middle circle is 2 feet (0.6 1 m), and there is a middle line running through it. There are also four marking lines with a width of 2 inches (5.08 cm) perpendicular to the sideline. Each marking line is 28 feet (8.53 m) away from the baseline and extends 3 feet (0.9 1 m) into the field. (Position area and neutral area and some short marking lines are omitted. )

2. Competition time

Each game is divided into two and a half hours ***4 sessions, each session 12 minutes. Work overtime for five minutes. There is a break between the first and second quarters, and the third and fourth quarters 130 seconds. Half-time 15 minutes. Take a break between the fourth quarter and overtime and between any overtime 100 seconds. At the last minute of the first, second and third quarters, the game timing should be stopped after the shooting is successful. In the fourth quarter and the last two minutes of overtime, you should stop the game timing after shooting successfully.

Step 3 group

During the competition, each team has 5 people, and the number of people on the field shall not be less than 5. If a player commits a personal foul for the sixth time and the team does not have a qualified substitute, the player should stay on the court and register as a personal foul and a team foul; The team will also be fined for technical fouls. All subsequent personal fouls (including offensive fouls) should be handled in this way. If there are only five qualified players, and one of them has to leave or be expelled due to injury, it should be replaced by the last player who has been disqualified for six games due to personal foul. Every time it is necessary to replace an injured or expelled player, it should be handled in this reverse order. Any disqualified player who participates in the competition again will be fined for technical foul.

start the game

The first quarter of the game and overtime should start from the middle jump ball. The second and third quarters should start with the team that lost the ball after the kick-off in the first quarter throwing a foul ball at the finish line. In the fourth quarter, the team that gets the ball immediately after the kick-off in the first quarter should start by throwing a foul ball at the finish line.

5. Dead ball, live ball, pressure ball

When the following situations occur, the ball becomes a dead ball: fighting for the ball; The ball stays on the basket or gets stuck between the basket and the backboard; Any period of time is over; A free throw for a technical foul; Personal foul (boxing foul, non-competition foul); The first of many free throws; Foul on the court (take the ball for 3 seconds, 10 seconds, 24 seconds, etc. ); Foul in a fight; Supervision post; After successful shooting or free throw; Before the players go out of bounds. The ball survives in the following situations: in any jump ball, when the referee throws the ball; When the player who throws the foul ball can handle the ball; When the penalty taker can handle the ball. The ball becomes a dynamic ball under the following circumstances: when the ball is legally shot by the jumper; When the ball leaves the hand of the player who throws the foul ball; When the ball leaves the free throw player's hand.

replace

Substitute players should report their names and numbers to the recorder and stay in the replacement area in front of the recorder. If you don't report to the recorder, you will be fined $25. When the ball becomes a dead ball (except after the successful shooting), the recorder will whistle to announce the substitution, and the substitute players need to be signaled by the referee to enter the game. The time to replace a disqualified player is 30 seconds. After the first free throw of many free throws, substitutes are allowed to enter the game regardless of whether the free throw is correct or not. A substitute shall not replace a free throw player or a jumper unless the injured player asks for a replacement. In this case, the coach of the opposing team shall choose a substitute on the team seat of the free throw (jumper) side. The injured players can't play any more. Once the substitute enters the game, he must stay on the field until the next dead ball. If a player is injured due to unethical behavior and cannot execute a free throw, his coach can designate any qualified player in the team to execute a free throw. Injured players can also play again.

7. Suspension

(l)20-second timeout Each team has the right to ask for a 20-second timeout every half hour. Every game (including overtime) * * * can require two 20-second timeouts. A player asks for a 20-second timeout, which will only be suspended when the ball is dead or the team has control of the ball. Players should shout "20-second timeout". During the 20-second timeout, the team can only change one player. If the suspended team is asked to replace a player, the opposing team can also replace a player. If a second 20-second timeout is required at halftime (including overtime), it should be allowed, but the regular timeout should be registered. If the game cannot continue at the end of 20 seconds, you should also register for a regular timeout.

(2) Regular suspension (100 second) Each team has the right to request a regular suspension of registration for 7 times. The fourth quarter limits each team to no more than four timeouts; In the last two minutes of the fourth quarter, there shall be no more than three pauses. In overtime, each team is allowed to pause three times. The player requests a time-out of 100 second, which will only be given if the ball is dead or the team controls the ball. Players should shout: "Time out". There must be two pauses in each game. If no team calls a timeout with 6 minutes and 59 seconds left in each game, the recorder should take a mandatory timeout at the first dead ball, and this timeout should be registered in the name of the home team. No team calls a second timeout when there are 2 minutes and 59 seconds left in each game, and the recorder has to force a timeout when the ball is dead for the first time. This timeout is registered in the name of the team that has not been registered in this section before. Additional timeouts are allowed, but a technical foul will be awarded. When the game is suspended, the head coach can ask for a 20-second or 100-second timeout.

Rule number two

When a team gets a new ball in a game, or when the ball is thrown into the field and legally touched by the players on the field, the 24-second timer will start counting. The team that owns the ball must shoot within 24 seconds after getting the ball. The conditions for completing shooting are: (1) Before the end of 24 seconds, the ball must leave the player's hand; (2) After the ball leaves the player's hand, it must touch the basket itself. If the ball doesn't touch the basket within 24 seconds, it's a 24-second violation.

(2) Illegal acts and their penalties

1.3 second rule

Team one holds the ball, and the players shall not stay in the restricted area for more than 3 seconds. One team controls the ball in the frontcourt and starts counting for 3 seconds. Punishment: losing possession of the ball. Give the ball to the opponent and throw a foul ball on the extended free throw line.

2. Elbow swing

Players are not allowed to swing their elbows excessively or forcefully (no contact). When the defender is nearby and the attacker takes the ball, it is a foul. Punishment: losing possession of the ball. Give the ball to the opponent and throw a foul ball on the sideline near the foul.

3. Illegal assistance score

Players are not allowed to use hoops or rebounds to promote, support or improve themselves, thus contributing to shooting scores. When shooting, a competitor shall not assist his companion to increase his height. Punishment: losing possession of the ball. Give the ball to the opponent and throw a foul ball on the extended free throw line.

isolation;quarantine

If the attacking side arranges three or more players outside the top of the circle or on the side without the ball, it should be fouled. Punishment: losing possession of the ball. Award the ball to the opponent and throw a foul ball on the sideline of the extension line at the top of the circle.

5. Attack and cover out of bounds

Attackers are not allowed to leave the ground area of the front line to establish cover. Punishment: losing possession of the ball. Give the ball to the opponent and throw a foul ball on the extended free throw line.

6. Sticky substances

Players are not allowed to use sticky substances or any similar substances. Penalty: a fine of $25 for the first violation. If you violate it again, the fine will be doubled.

(3) Foul and its punishment

1. Technical foul

A player's immoral behavior or violation of rules on the court or bench is a technical foul. Illegal contact with opposing players before the ball survives can also be judged as a technical foul.

(1) Any player, coach or trainer who has no sportsmanship can be fined up to two technical fouls. Any violator who has no sportsmanship once can be dismissed; In both cases, immoral behavior must be expelled. Sportsless behavior, such as: it is impolite to talk to the referee; Physical contact referee; Express public dissatisfaction with the verdict; Use obscene language; The coach entered the venue without the permission of the referee; Stretch your elbow intentionally or try to tamper with it, but it doesn't involve contact.

(2) In a foul fight or a dead ball, the player, coach or trainer should record the technical foul and not punish the ball. Those who take part in the fight should be fired immediately. In addition, according to the situation, the fighter will be fined not more than $20,000 and suspended. In NBA games, the penalty for foul is more severe. An athlete, coach or trainer can be dismissed under the following circumstances: the elbow foul is at or below the contact shoulder level; A malicious foul caused by unnecessary or excessive contact. Athletes, coaches or trainers must be dismissed if they commit the following acts: boxing foul; Foul in a fight; Elbow foul is higher than the level of contact shoulder; Trying to punch without contact; Not the continuation of the game, but deliberately entering the stands. In order to punish and stop the foul, there are also fines in NBA rules. For example, if the referee thinks that the player is hanging from the basket on purpose, he should be sentenced to a technical foul and fined 100 USD.

2. personal foul

After the ball survives, it is a personal foul to have illegal physical contact with the opposing team. Players are not allowed to pull, push or bump other players; Nor are you allowed to stretch your arms, legs, knees or bend your body into an abnormal posture to hinder the progress of the opposing team members. Violation of the regulations will be judged as a personal foul and will be punished according to relevant penalties.

(1) Foul on both sides A foul on both sides means that two players who are not on the same team have personal or technical fouls on each other almost at the same time. Punishment: individual or technical fouls will not be punished, only players will be recorded for fouls, not the whole team. If a team owns the ball when both sides are convicted of a foul or a fight foul, it should keep the ball and throw a foul ball on the sideline near the place where the game was interrupted to continue the game. If neither side owns the ball when the foul is declared, or the ball is in the air when the shot is missed, any two players from different teams should jump the ball in the middle circle to continue the game. If the shot is successful and the score is valid, throw the foul ball at the baseline to continue the game. If the foul of both sides is the result of different opinions of the referees, no points will be scored, and any two players from different teams will jump the ball in the middle circle to continue the game.

(2) Offensive foul After the ball survived, the attacking player had illegal contact with his opponent, which was an offensive foul. Personal foul of the attacker, if not elbow foul, boxing foul, or malicious foul, should be dealt with as follows: the attacker does not score; Register a foul player and commit a personal foul; Do not register the team's in-team foul (except for the sixth personal foul of the team and the team has no qualified substitute).

(3) No-ball foul After the ball becomes a dynamic ball, it is a no-ball foul to make illegal contact with the opposing team without the ownership of the ball. If a player commits a personal foul, if it is not a boxing foul, a malicious foul or an elbow foul, and neither side owns the ball at the time of the foul, it will be punished as follows: (1) register the fouled player as a personal foul; Register a foul team for team foul; If the team's foul penalty does not appear, the opposing team is sentenced to throw a foul ball on the sideline near the foul place; If there is a team foul penalty, the infringed player will be awarded a penalty plus points. If the defender is convicted of a foul without possession of the ball, and then the shot (free throw) is successful, the infringed party should be sentenced to a free throw.

(4) Boxing foul It is a boxing foul for an athlete to slam his opponent with his fist. It is a personal foul and a team foul for a player to be convicted of illegal contact because of boxing. Two penalties and one throw should be awarded. Any player who hits his opponent, whether he hits or not, is immoral. He was immediately dismissed and stopped at least one game. If boxing fouls occur one after another, all the contents of this rule will be applied, and the team that was finally fouled will throw a foul ball in the midfield. In addition, according to the situation, the player was fined not more than $20,000 and was suspended.

(5) Non-match foul In the last two minutes of the fourth quarter or overtime, the defender and the attacker made illegal contact with the ball, and this contact occurred in the area far away from the ball or when the foul ball did not leave, which was a non-match foul penalty: registered individual foul and team foul; A free throw (elbow foul or malicious foul twice) can be executed by any player on the field; And the infringing team threw a foul ball near the place where the game was interrupted to continue the game.

(6) Team foul: each team fouls more than 4 times in each game, and each team fouls more than 3 times in overtime, and the penalty points will be added. If the team fouls less than 4 times within 10 minute before each festival, or less than 3 times within 3 minutes before overtime, the team is allowed to make a team foul in the last two minutes without additional punishment. If the player who is shooting has a personal foul, he will be sentenced to two free throws. If there is a team foul penalty, he will not be sentenced to additional free throws. If the shooting is successful, a penalty will be awarded, and if there is a team foul penalty, no additional penalty will be awarded.

(4) NBA regular season ranking rules:

Rule 1: The difference between winning and losing refers to the difference between the team and the division leader divided by 2.

Rule 2: The top eight in the East and West sub-leagues enter the playoffs. The first place in the three divisions of the same league and the second place in the best division determine the top four in this division according to their records, and the other four teams rank according to their respective records.

Rule 3: The home advantage of the two teams in the playoffs is determined by the winning percentage in the regular season, not the ranking.

Rule 4: When the gap between the two teams is the same, they will be ranked according to the following criteria:

1, the record is good in the front;

2. The party with the highest winning rate in the division (only applicable to the two teams belonging to the same division);

3. The opponents in the same league (East-West League) have the highest winning rate;

4. When competing with the top eight teams in the same sub-league, the team with the highest winning rate is in the front;

5. The top eight teams in another sub-league have the highest winning rate;

6. Those with high gain and loss scores rank first.

Rule 5: When three or more teams have the same difference in winning games, they shall be ranked according to the following criteria:

1, the overall record of the three teams (or above) is good;

2. The opponent with high winning rate in the same league (East-West League) is in the front;

3. The team with the highest winning rate in the division (applicable to all teams belonging to the same division);

4. The top eight teams in the league have the highest winning percentage;

5. Those with high gain and loss scores rank first.

The changing process of NBA rules

1946-47 season: cancel the joint defense in the original university rules (1947 65438+ 10/0/).

1950-5 1 season: added the statistics of rebounds.

195 1-52 season: In order to weaken George McCann's rule over the basket, the three-second zone was expanded from 6 feet to 12 feet.

1953-54 season: in order to prevent the impact of intentional foul on the game, it is stipulated that each player can only foul twice in each quarter and will be sent off three times. (This rule has now been abolished)

1954-55 season: introduce the 24-second rule; The team accumulated 5 fouls in each quarter, and the other team made free throws.

1964-65 season: In order to weaken Chamberlain's rule over the basket, the three-second zone was expanded from 12 feet to 16 feet.

1973-74 season: statistics of steals and blocks have been added.

1974-75 season: A player commits immoral acts on the court and is sentenced to a technical foul, and needs to pay a fine of $ 50- 100; Asking for a timeout at the end of overtime will not be approved.

1975-76 season: after a general foul, throwing a sideline ball will be fined.

1976-77 season: using too many elbow joints in defense is a foul; If the defender hits the ball out of bounds, the attacker serves on the sideline at both ends of the free throw line; If you don't serve within 5 seconds (originally 10 seconds), the opponent will make a free throw.

1977-78 season: if the coach questions the rules after the game starts, he can send an assistant coach to negotiate with the referee (previously, he could only negotiate before the game starts); If you break the basketball when you score, and the referee thinks you did it on purpose, it's a foul. After all fouls, the attack time will be set back to 24 seconds; If the ball enters the basket from the basket, it is a foul; If there is a fight on the court, the players who are not present will be fined 100 to 150 dollars if they leave the bench and enter the court; During the warm-up before the game, players will be fined $25 if they hang from the basket.

1978-79 season: the number of referees increased from two to three; Now it is allowed to pull the ball back from the field in flight, but it was previously deprived of possession; The first technical foul, the team warned, the second technical foul, the team fined twice; After half-time, players and coaches should return to the lounge immediately, while the previous rule was that players and coaches should return to the lounge immediately after the game; The rules allow the defender to interfere with the player he is defending with his hands, but they cannot stop him from moving forward.

1979-80 season: the baseline three-point line was expanded from 22 feet to 23 feet. The number of referees has been reduced from three to two. If the attacker tries to pass his own half within 10 seconds, and the opponent throws the injury out of bounds, the time spent before will not be deducted from 24 seconds.

1980-8 1 season: each team must call a 20-second short pause at half time, and the whole game must call two short pauses, and overtime is the same; After the pause, the whistle and the red light on the backboard will light up at the same time; Players on the field are not allowed to wear ornaments on their heads, faces, noses, ears and arms; The face, eyes and nose protectors worn by players must be consistent with the face, and there must be no prominent sharp objects; Players can't use equipment on the court to increase their physical advantage; The attacker is sentenced to a technical foul, and the attack time will not be transferred back to 24 seconds. According to the previous regulations, the attacker or defender will be sentenced to a technical foul, and the time will be adjusted back to 24 seconds; After being verbally warned, the time is set back to 24 seconds; Additional regulations on free throws: players must not intercept the ball before it breaks through the basket.

198 1-82 season: players must wait for the referee's sign before entering the stadium when changing players; When the number of fouls of the whole team is full, the return line is also regarded as a foul, and the other side makes two free throws.

1982-83 season: after the ball is out of bounds, the team cannot assign a player to throw the ball out of bounds.

1983-84 season: no fake action during free throws. The attacker fouled the defender while the ball was released. If the goal is scored, the goal is valid and a free throw is added.

1984-85 season: In the five-minute overtime, the number of times each team can call a timeout is increased from two to three, which will not be affected by the previous timeout. If the attacker fouls in the frontcourt, the attacker has a clear chance to cut into the basket and score, and the defender will be fined twice. After the second free throw, the penalty side serves the sideline ball. If the coach or player stays on the court at the end of the half-court and the whole game and does not return to the lounge directly, the fine will be increased from $65,438+000 to $500. If a substitute player leaves his team's bench when there is a fight between players.

1988-89 season: the number of law enforcement referees increased from two to three. Malicious foul will be punished by two penalties and one throw, that is, the infringed still has the ball right after two free throws. If at least one of the following conditions holds, the fouler can be expelled from the court and automatically fined $250: the foul action is directed at the person, not the ball; According to the referee's scoring standard, foul action will lead to injury.

1993 playoff: any player who fights and punches in the game will now be immediately sent off the field, suspended for at least one game and fined an appropriate amount; Any player who punches other players in the match will be immediately sent off the field, suspended for one to five games and fined an appropriate amount. The team will also be fined the same as the players. Any player who leaves the bench in battle will be fined between $500 and $2,500, and the team will fine each player who leaves the bench in this way $5,000.

1993-94 season: If a player fouls maliciously for more than 5 times in a season, starting from the sixth malicious foul, an additional suspension penalty will be imposed for each malicious foul.

1994-95 season: unify the distance from the three-point line to the basket to 22 feet. Any player who fouls when the attacker throws a three-pointer will be sentenced to three free throws. Any player who leaves the bench in a fight will be automatically suspended for at least one game and the maximum fine will be increased to $20,000. When a player is suspended, he won't get paid for the game. Two malicious fouls in a game will be sent out of the area between the baseline and the free throw line. Defenders can only bend their arms to defend, but can't reach out and push the attackers. He will be fined $500 for each technical foul. In the past, the first technical foul will be fined 100, and the second will be fined 150. If the defender catches a player who obviously has a chance to score in the fast break, he will be sentenced to two free throws. Previously, this rule only took effect for players who had the opportunity to attack under the basket. The second and subsequent pauses when the ball is not on the field are reduced to 45 seconds.

1996-97 season: if the team continues to call a timeout without a timeout, it will be sentenced to a technical foul and lose possession of the ball.

1997-98 season: the three-point line returned to 23 feet 9 inches, and it was still 22 feet in the corner. When the attacker faces the basket, the defender is not allowed to stop his attack with his forearm. If the player's feet are in the air and his body is outside the baseline or sideline, the player has no right to call a time-out. In a semicircle with the basket as the center and a radius of 4 feet, the attacker will not be sentenced to an offensive collision foul if he hits the auxiliary defender whose defensive position has been determined. This area used to be a rectangle of 2x6 feet.

[Edit this paragraph ]NBA season

NBA is divided into preseason, regular season and playoffs. Pre-season: designed for the team to train new players. Regular season: divided into home and away games, each team participates in 82 games. Playoffs:: ∶NBA is divided into East and West. *** 16 ball to participate in the playoffs.