
The jump ball is a basketball tradition that marks the start of the game and sometimes decides who gains possession during crucial moments. It occurs when two opposing players gain possession of the ball simultaneously, or when the referee calls for it due to a particular situation in the game. The referee tosses the ball vertically into the air, and the two players jump to tip it to their teammates. The team whose player gains possession of the ball gets to start the game, or the next possession in the case of a held ball situation. While the jump ball is a well-known aspect of basketball, not all leagues use it in the same way.
| Characteristics | Values |
|---|---|
| Occurrence | To start the game, restart the game, or when two opposing players gain possession of the ball simultaneously |
| Participants | Two opposing players |
| Objective | To gain possession of the ball |
| Rules | Players must not leave the circle early, touch the ball before it reaches its highest point, tap the ball more than twice, or catch the ball |
| Violations | Loss of possession |
| Variations | Alternating possession arrow, pregame coin toss |
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What You'll Learn

Jump balls occur at the start of a basketball game
Jump balls are an essential and iconic part of basketball, and they occur at the start of a basketball game. They are used to mark the beginning of play, with the referee tossing the ball vertically into the air between two opposing players who jump to try and tap it to their teammates. This method of starting the game is used in many different basketball leagues, including the NBA, WNBA, college basketball, and international play.
The jump ball is a tradition that dates back to the very beginning of the sport in 1891 when James Naismith threw the first-ever jump ball. While the rules have changed slightly since then, with the NCAA scaling back the frequency of jump balls in 1937, it remains a key part of the game.
In the NBA, there is always at least one jump ball in every contest, occurring at the start of the game, with additional jump balls at the start of any extra periods and to settle held balls or other special situations. The winner of the opening tip receives possession of the ball to start the first and fourth quarters, while the loser gets possession in the second and third quarters.
In college basketball, the jump ball is only used at the beginning of the game, with the alternating possession arrow rule used for the rest of the game. This rule was implemented in 1981 to address concerns about inconsistent tosses from referees. The arrow switches direction each time a held-ball situation occurs, indicating which team will get the next possession.
The jump ball can play a crucial role in determining the outcome of a game, as winning the opening tip gives a team an early advantage. It requires players to have good timing, positioning, and communication skills to succeed.
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They are used to restart play
Jump balls are used to restart play in basketball. They occur when two opposing players gain possession of the ball simultaneously or when the referee calls for it due to a particular situation in the game. This includes when the ball is held, when there are different calls by two or more referees, or when the ball gets wedged between the goal and backboard.
The jump ball is a method of restarting play where the referee tosses the ball vertically into the air, and two opposing players jump and attempt to tap it to their teammates. The team whose player gains possession of the ball gets the next possession.
In some leagues, such as the NBA, jump balls are used to restart play at the beginning of the game and the start of any extra period. Other leagues, such as college basketball and the WNBA, use the alternating possession arrow rule to restart play after the initial jump ball at the start of the game. This rule reduces the number of jump balls during the game and helps with pace and consistency.
The alternating possession arrow rule states that possession of the ball is awarded to the team that is moving in the direction of the possession arrow on offense. The arrow then switches to point to the other team. This rule was adopted based on the belief that referees could not consistently ensure fair tosses.
While the jump ball is a well-known tradition in basketball, it is not the only determining factor in the outcome of a game. However, it can play a crucial role, and teams with a good understanding of the rules and strategies can gain a significant advantage.
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Jump balls are used to settle held balls
Jump balls are an essential and recognisable part of basketball, used to start or restart play. They occur when two opposing players gain possession of the ball simultaneously, or when the referee calls for it due to a particular situation in the game. This includes when the ball is wedged between the goal and backboard, or when two referees make different calls.
A jump ball sees two opposing players stand facing each other, with the ball between them. The referee tosses the ball vertically, and the players jump to tip it to their teammates. The team whose player gains possession of the ball gets to start the game, or the next possession in the case of a held ball situation.
Winning the jump ball can give a team a significant advantage, requiring timing, positioning, and communication. However, it is not the only determining factor in the outcome of the game.
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They can occur when penalties cancel out
Jump balls are a well-known and long-standing tradition in basketball. They are used to start or restart play, with the referee tossing the ball vertically into the air between two opposing players. The players then jump and try to tap the ball to their teammates. This method is used to determine possession in situations where both teams have an equal claim to the ball.
Jump balls can also occur when penalties cancel each other out, or when there are simultaneous fouls, and it is unclear which team should receive possession. In these cases, a jump ball can be used to fairly determine which team gains possession of the ball. This is particularly relevant in the NBA, WNBA, and Euroleague Basketball competitions, where the jump ball is a fixture of the sport.
The jump ball is a relatively unregulated part of basketball, with penalties rarely called on players who touch the ball before it reaches its peak. The rules for jump ball throw styles are flexible, and players may employ misdirection to catch their opponents off guard.
The outcome of a jump ball can be influenced by timing, positioning, and communication, and teams that understand the rules and strategies can gain a significant advantage. However, while winning a jump ball can be beneficial, it is not the sole factor in determining the outcome of a game.
Some basketball leagues have adopted the alternating possession arrow rule to reduce the number of jump balls during a game. This rule uses an arrow on the scorekeeper's table to indicate which team is entitled to possession, with the arrow switching directions after each held-ball situation.
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Jump balls are rarely used in overtime periods
Jump balls are an iconic and longstanding tradition in basketball, used to begin or resume play. Two opposing players jump and attempt to gain control of the ball after an official tosses it into the air between them. While the jump ball is used to start the game, its use during overtime periods varies depending on the league and level of play.
In the NBA, there is one jump ball to begin each game and any overtime periods. Additionally, a jump ball is used for any tie-ups during play. However, other basketball leagues have different rules regarding jump balls in overtime. For example, FIBA, which operates the EuroLeague and Eurocup, previously used the NBA jump ball rules but adopted the alternating possession arrow rule in 2005. According to this rule, play begins with the arrow in overtime periods, instead of a jump ball. Similarly, college basketball uses the alternating possession arrow for overtime, with possession determined by the arrow instead of a jump ball.
The use of the alternating possession arrow in overtime is based on the belief that referees may not be able to consistently ensure fair tosses. Advocates of the arrow rule argue that it promotes fairness, while also improving the pace and consistency of the game, especially at lower levels of play. On the other hand, opponents argue that jump balls are a vital part of the sport and should be retained.
While the use of jump balls in overtime may vary, they remain a distinctive feature of basketball, contributing to the excitement and unpredictability of the game. The rules and strategies surrounding jump balls continue to evolve, with league data engineers now using advanced technologies to evaluate jump ball tosses and determine fairness.
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