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Basketball is a team sport invented in 1891 by Canadian-American gym teacher James Naismith in Springfield, Massachusetts, in the United States. The game is played between two teams of five players each, who aim to score points by shooting a ball through a hoop. The game is played on a rectangular court, with a hoop at each end. Basketball has evolved to become one of the world's most popular and widely viewed sports, with the NBA being the top professional basketball league in terms of popularity, salaries, talent, and level of competition. The sport has also spawned several spin-offs, including Ringball, Korfball, and Slamball, which is played on trampolines.
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Court and equipment
Basketball is played on a rectangular court, usually indoors. The official dimensions for a basketball court are 28 meters in length and 15 meters in width, with minimum allowed dimensions of 26 meters in length and 14 meters in width. The border markings along the length of the court are called sidelines, and the breadth of the court is called endlines or baselines. The outer edge of the key parallel to the endline is the free-throw line, with a 3.6-meter-diameter semi-circle called the free-throw circle. The court is divided into two main sections by the mid-court line.
The basket consists of a round, metallic rim from which the net hangs, supported by a backboard. The backboard is typically made of plexiglass or tempered glass, and the basket/net is mounted on it. The backboard has mandated dimensions of 1.8 meters horizontally and 1.05 meters vertically and is usually positioned 10 feet above the ground. The basketball court surface is usually made of maple wood, concrete, or asphalt.
The basketball itself varies in size according to the federation in which it is used. According to FIBA regulations from 2004, the ball must be inflated so that when dropped from a height of 1.8 meters, it bounces back to a height between 1.2 and 1.4 meters.
There are some variations in court dimensions depending on the federation and level of play. For example, under NBA rules, the court is 90 feet by 50 feet, while FIBA rules stipulate a court size of 92 feet by 49 feet. High school courts are typically smaller, measuring 84 feet by 50 feet.
Informal variations of basketball are played on different surfaces and court shapes, including circular courts on beaches, swimming pools, and trampolines.
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Rules and scoring
Basketball is a team sport played between two teams of five players each. The game is played on a rectangular court with a hoop at each end. The objective is to score points by putting the ball inside the hoop, also known as a basket, and to prevent the opposing team from doing the same. The team with the most points at the end wins. If the game is tied, overtime periods are played until a winner emerges.
The game begins with a tip-off, where a referee tosses the ball up between one player from each team at centre court. The offensive team, or the team with the ball, has 10 seconds to get the ball over the mid-court line. Once they do, they can no longer have possession of the ball in the area behind the mid-court line, or it is awarded to the defence. The ball is moved down the court toward the basket by passing or dribbling.
A field goal scored from outside the three-point line is worth three points. A field goal scored from inside the area encircled by the three-point arc is worth two points. Points can also be accumulated through free throws, which are worth one point each. Free throws are awarded to a team when the opposition team fouls. During a free throw, the fouled player is allowed a fixed number of shots, depending on the nature and referee's interpretation of the foul committed.
On defence, a player is responsible for stealing passes, contesting shots, preventing drives to the hoop, and for boxing out. A player can commit a personal foul by touching an opponent's arm or hand, pushing them, or preventing them from moving. With five personal fouls, a player must leave the game. A technical foul is called when a player, coach, or team member performs an unsporting action.
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Offensive and defensive roles
Basketball is a team sport played between two teams of five players each on a rectangular court, usually indoors. The core objective in a basketball game is to score points by putting the ball inside the hoop, or basket, and to prevent the opposing team from doing the same. The team with the ball is called the offense, and the team without the ball is called the defense.
Offensive players have the responsibility of dribbling, passing, and setting up offensive plays. They also need to be able to drive to the basket and shoot from the perimeter. They keep the basketball moving around the court by dribbling or passing the ball to a teammate.
On defense, a player's responsibilities include stealing passes, contesting shots, deflecting passes, and rebounding. They guard an opponent without the ball, aiming to deny them easy access to scoring positions and disrupting passing lanes. They also engage in on-ball defense against an opponent in possession of the ball, with the goal of preventing easy shots, forcing turnovers, or blocking passing lanes.
Both offensive and defensive players need to be able to rebound. Rebounding involves securing the ball after an opponent's missed shot, preventing second-chance opportunities, and initiating the transition from defense to offense.
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Variations
Basketball is a versatile sport with numerous variations, from minor rule changes to distinct games. These variants not only make the sport more accessible and enjoyable but also help players improve their skills. Most variations are played in informal settings, without referees or strict adherence to official rules. Here are some of the popular variations:
Street Basketball (or Streetball)
Street basketball is a raw and energetic version usually played on outdoor courts in a half-court setup. Teams typically consist of three to five players, and the rules are more relaxed than traditional basketball. Scoring is straightforward, with points awarded for baskets, and the game often ends once a set score is reached. Fouls are self-regulated, and the focus is on individual skill, style, and creativity. Street basketball is characterised by its fast pace, emphasis on talent, and thrilling plays like crossovers and dunks.
Half-Court Games
Half-court variations are commonly played when there are fewer players available. These games can be played 1-on-1, 2-on-2, 3-on-3, or with any even number of players. The rules are similar to the official sport, but with some variations. For example, the team that catches a rebound must shoot from outside the three-point line. Half-court games require less cardiovascular endurance as players don't need to run the full length of the court.
Twenty-One (or 21)
Twenty-One is a free-for-all game played by three or more players, where each player competes individually to score exactly 21 points. Players earn points by making shots, with field goals worth one or two points. After scoring, players get additional free-throw attempts. If a player exceeds 21 points, their score drops back to 11 or 13, adding a strategic element. Defence is aggressive, with non-scoring players working together to prevent the leader from winning. This variation is a mix of skill, strategy, and endurance.
One-on-One
One-on-One is an intense head-to-head competition between two players, usually played on a half-court. Players take turns on offence and defence, with possession alternating after a successful basket. This variation emphasises individual dribbling and ball-stealing skills over shooting and team play.
H-O-R-S-E
H-O-R-S-E is a popular variation where players take turns shooting from different spots on the court. If a player makes a shot, the next player must make the same shot, and if they miss, they receive a letter. The game continues until one player spells "HORSE," at which point they are eliminated. This variation encourages shot-making creativity and lighthearted competition.
These are just a few examples of the many variations of basketball. Each variation brings unique challenges and excitement to the game, catering to different skill sets and preferences of players.
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History
Basketball was invented in 1891 by James Naismith, a Canadian physical education instructor and graduate student at Springfield College in Springfield, Massachusetts. The game was created as a less injury-prone alternative to outdoor sports during the harsh New England winters. Luther Halsey Gulick, the college's physical education director, challenged Naismith to create this new indoor game for students.
Naismith's original game involved 18 players, a soccer ball, and two peach baskets nailed to balconies at each end of the gymnasium. The first game was played with nine players per team, and this number remained until 1897 when the rules stipulated that five players were to be on each team. In 1893, basketball was introduced in France, followed by England in 1894, Australia, China, and India soon after, and Japan in 1900.
The first professional league was formed in 1898, with six teams taking part in the National Basketball League. However, the growth of the sport was initially slow, and it wasn't until the formation of the National Basketball Association (NBA) in 1946 or 1949 that basketball cemented its cultural importance in the United States. The NBA has since become the top professional basketball league worldwide in terms of popularity, salaries, talent, and competition.
Basketball was first included in the Olympic Games in 1936, with the first tournament taking place on outdoor tennis courts in Berlin. The American team dominated the early Olympic tournaments, winning the first seven consecutively. The game gained international popularity following World War II, and today, there are various international competitions and leagues, such as EuroBasket and the FIBA Americas Championship.
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Frequently asked questions
Basketball is played between two teams of five players each on a rectangular court, usually indoors. The primary objective is to score by successfully throwing the ball into the opposing team's basket while preventing them from gaining control or scoring. The ball may only be manipulated with hands and can be passed, thrown, tapped, rolled, or dribbled within the stipulations of the rules. Continuous dribbling is required while moving with the ball. If a basket, or field goal, is made outside of the three-point arc, then that basket is worth three points. A free throw is worth one point.
The players are generally referred to by their playing positions on the court, which include a point guard, shooting guard, power forward, small forward, and center.
Basketball is a great way to get active and have fun. It is a fast-moving game that involves a lot of running, jumping, and twisting, which can help build stamina and muscular endurance. It can also burn a lot of calories — an hour of basketball can burn 630-750 calories.
Half-court basketball is usually played 1-on-1, 2-on-2, or 3-on-3. The latter variation is gradually gaining official recognition as 3x3, originally known as FIBA 33. Other variations include 21 (also known as American, cutthroat, and roughhouse), wheelchair basketball, and a form of basketball played in water that combines the rules of basketball and water polo.
