
The jump ball is an iconic basketball tradition, used to begin or resume play. It involves an official tossing a ball into the air between two opposing players, who then attempt to gain control of it. While the rules and usage of jump balls vary across different leagues and levels of play, they are most commonly used at the start of a game. Jump balls can also be used to determine possession during key moments, such as dramatic overtime tips in international play. The setup for a jump ball involves strategic positioning of players, with the goal of gaining possession of the ball. Factors such as height advantage, defensive balance, and the ability to tip the ball effectively play a crucial role in the success of a jump ball setup.
| Characteristics | Values |
|---|---|
| How to begin a jump ball | The referee tosses the ball vertically between two opposing players, who jump and attempt to tap it to a teammate. |
| When to use a jump ball | To begin or resume play in basketball. |
| Player positioning | Jumpers should be positioned facing the basket farthest from their bench. Non-jumpers must not move onto the center restraining circle or change positions on the circle until the ball is tossed. |
| Tossing styles | One-handed, two-handed, underhanded, and overhanded. The trajectory is typically near-vertical, but this is not a requirement. |
| Tossing height | Just higher than the players can jump. |
| Tossing rules | The ball becomes live when it leaves the referee's hand. It should not be touched until it reaches its highest point. |
| Possession rules | The NBA, WNBA, NCAA, and Euroleague Basketball use alternating possession rules, awarding possession sequentially after the opening tip. |
| Advantages | Having a height advantage or a tall player on your team can increase the chances of gaining possession. |
| Defending strategies | The "Y" alignment places two players back to eliminate the possibility of an easy shot and forces the opponent to set up the ball. |
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What You'll Learn

Player positioning
Firstly, it is important to understand the basic setup. A jump ball typically involves two opposing players, known as jumpers, who attempt to gain control of the ball after it is tossed by an official. This usually happens at the start of the game, but can also occur during key moments when possession needs to be determined. The jumpers are positioned at half-court, each on a sideline, facing the basket farthest from their bench. They must have both feet in the half of the center restraining circle farthest from their basket.
The remaining players, or non-jumpers, have specific positions as well. In a basic setup, two players (O1 and O2) line up on opposite sides of the circle at the half-court line. Their role is to quickly release up the sides into the forecourt as soon as the ball is tossed. Another player (O3) stays back to prevent the opponent's fast break, and the final player (O4) is a strong post player who lines up on the offensive end of the circle.
Different strategies may be employed depending on the situation. For example, if your team has a height advantage, you can run set jump ball plays. In this case, the ball is typically tipped forward to the tallest player (O4), who then becomes responsible for passing it out to a teammate. This strategy takes advantage of the height advantage to gain early possession.
Alternatively, if your opponent has a superior jumper, you might employ a defensive strategy. The "Y" alignment is useful in this situation, where two defenders (X3 and X4) are positioned near the top of the free-throw circle. This strategy aims to prevent an easy shot by the opposing team and forces them to set up their offense.
It is important to note that rules regarding player movement during a jump ball vary depending on the league. For example, in some leagues, non-jumpers may not enter the center restraining circle or change positions until the ball is touched. In other leagues, non-jumpers are allowed more freedom of movement, including breaking toward the basket.
Understanding the specific rules and strategies for player positioning during a jump ball is crucial for both players and referees to ensure fair and exciting gameplay.
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Height advantage
Height is a key advantage in basketball, and this is no different when it comes to jump balls. If you have a 6" or greater height advantage over your opponent, you can run set jump ball plays.
To set up for a jump ball, you should first ensure your best jumper is jumping centre. This player should be your tallest player, or a good leaper. They will be jumping against an opponent to try and gain possession of the ball.
To increase your chances of winning the jump, watch the opponent's eyes and hands. Most right-handed jumpers will tip forward to their left, and left-handed players will tip forward to their right. If you can anticipate which direction they will jump in, you can gain a competitive edge.
To increase your overall jumping ability, you can do exercises such as jump squats, deadlifts, calf raises, power skips, and box jumps. These exercises will strengthen the leg muscles and increase your vertical jump. You can also try to increase your horizontal speed before jumping, as this will help to increase the height of your jump.
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Tipping techniques
Player Roles and Positioning:
- Identify your best jumper and ensure they take the jump center position. This player should be tall or a good leaper to increase your chances of gaining possession.
- Place your strong post player (O4) on the offensive end of the circle. This player will be responsible for receiving the tip and initiating the next phase of the play.
- Position two quick players (O1 and O2) on opposite sides of the circle at the half-court line. They will be responsible for releasing up the sides into the forecourt quickly after the tip.
- Assign one player (O3) to stay back and prevent the opponent's fast break. This player can also help with defensive balance.
Tipping Strategies:
- Watch the opponent's jumper's eyes and hands to anticipate their tipping direction. Most right-handed jumpers will tip forward to their left, and left-handed players will tip to their right.
- If you have a height advantage of 6" or more, generally tip the ball forward to your tallest player. This increases the chances of gaining possession and maintaining defensive balance.
- Utilize the \"Y\" alignment by placing two defenders back near the top of the free-throw circle. This eliminates the possibility of an easy shot by the opposing team and forces them to set up their offense.
- Encourage players to move and rotate early, especially in defensive tip situations where the opponent has a height or jumping advantage. This helps your team gain a competitive edge.
Alternative Strategies:
- If you have little chance of gaining possession off the tip, consider setting up a defensive line-up around the circle, even conceding the tip to focus on preventing a lay-up.
- Practice different throwing styles, such as one-handed, two-handed, underhanded, or overhanded. While the typical trajectory is vertical, some players like Ken Mauer are known for their unique off-center throwing styles that can surprise opponents.
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Toss styles
The toss is delivered by the referee, who must toss the ball vertically into the air between the two opposing players. The toss style can vary, including one-handed, two-handed, underhanded, and overhanded styles. The toss should be delivered at a near-vertical angle, just higher than the players can jump.
Referees should be mindful of ensuring a fair toss. If the toss is deemed unfair, the game's outcome could be affected. For example, if the toss is too close to one player, they could gain an advantage. Therefore, the toss should be delivered at an equal distance between the two opposing players.
Referee Ken Mauer is known for his unique tossing style, which involves "taking multiple steps back, then tossing the ball at an angle with a surprise motion that almost made him look like a volleyball player setting the ball for a teammate". This style of tossing the ball adds an element of unpredictability to the jump ball, keeping players on their toes.
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Rules and violations
Jump balls are a relatively unregulated part of basketball, and the rules for jump balls are generally quite relaxed. However, there are still some rules and violations to be aware of.
Firstly, a jump ball occurs when the referee tosses the ball vertically into the air between two opposing players, who jump and try to tap it to a teammate. It is used to determine which team gains possession in situations where both teams have an equal claim to the ball, most commonly at the start of the game.
There are some rules regarding the toss itself. The referee should toss the ball just higher than the players can jump, and players must not touch the ball until it reaches its highest point. Tapping the ball more than twice is a violation, and players must not catch the ball—it must be tipped to a teammate. Players must also stay within their circle until the ball is touched. If the ball touches the floor without being touched by at least one of the jumpers, it shall be retossed.
Violations result in a loss of possession, and are often called in close, competitive matchups. If a violation occurs before either team obtains possession, it shall be ruled a "loose ball" foul. If the violation or foul occurs prior to the ball being tapped, neither the game clock nor the shot clock shall be started.
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Frequently asked questions
A jump ball is a method used to begin or resume play in basketball. It involves an official tossing a ball into the air between two opposing players who then attempt to gain control of the ball.
The use of jump balls varies across different leagues and levels of play. In the NBA, jump balls are used at the start of a game and sometimes during key moments. In college basketball, a jump ball is used only at the beginning of the game, with subsequent held-ball situations using the alternating possession arrow.
To set up for a jump ball, you should have your best jumper jump center. Place your tallest player or someone with a height advantage as the tipper. Have two quick players line up on opposite sides of the circle at the half-court line. Position one player back to prevent the opponent's fast break. As the ball is tossed, these players can quickly release up the sides into the forecourt.


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