
Out-of-bounds in basketball is a crucial aspect of the game, influencing strategy and gameplay. It occurs when a player or the ball touches or goes beyond the boundary lines or specified areas, with rules varying between leagues. The determination of out-of-bounds impacts the flow of the game, often creating advantageous or disadvantageous situations for teams. Understanding the rules and strategies surrounding out-of-bounds situations is essential for players and coaches to make effective decisions and execute successful plays.
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What You'll Learn

Player out-of-bounds
A player is deemed out-of-bounds in basketball when they touch the floor or any object on or outside a boundary. For a player in the air, their position is determined by the last point of contact with the floor. The last part of the foot/feet in contact with the floor before jumping over the midcourt or three-point line determines their location.
If a player goes out of bounds to gain an advantage, it is considered a violation. For example, running under the basket to get to a ball and stepping out of bounds in the process is a violation, even if the player regains their position inside the boundary.
In US high school basketball, if a player's momentum takes them out of bounds or they step out accidentally, they can re-establish their position with one foot back in bounds and can then be the first to touch the ball. However, this is not allowed in NCAA or NBA basketball.
During a throw-in, if the ball goes out of bounds without being touched by a player, it is returned to the original throw-in spot. After a score, field goal, or free throw, any player from the team not credited with the score puts the ball into play from any point out-of-bounds at the endline of the court where the points were scored. They can pass the ball to a teammate behind the endline, but the five-second throw-in rule applies.
If the ball goes out-of-bounds after being touched by a player on or outside a boundary, that player is responsible for causing it to go out. If an opponent hits the hand of a player whose hand is in contact with the ball, causing it to go out-of-bounds, the team whose player had their hand on the ball retains possession.
If the ball goes out-of-bounds and was last touched simultaneously by two opponents, or if the official is unsure or there is disagreement about who last touched the ball, play is resumed by a jump ball between the two involved players in the nearest restraining circle.
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Ball out-of-bounds
In basketball, a ball is ruled out-of-bounds when it touches a player who is out-of-bounds or any other person, the floor, or any object on, above, or outside of a boundary, including the supports or back of the backboard. Any ball that rebounds or passes directly behind the backboard, in any direction, or enters the cylinder from below is also considered out-of-bounds. The ball is attributed to the last player to touch it before it goes out, provided it goes out of bounds due to touching something other than a player. If the ball goes out of bounds and was last touched simultaneously by two opponents, play is resumed with a jump ball between the two involved players in the nearest restraining circle.
When a ball goes out of bounds, coaches may opt to get the ball inbounds and set up a play, or they may use it as an opportunity to attack. The primary objective is to inbound the ball successfully and then get it into the hands of the best players for a high-percentage shot. Out-of-bounds plays are successful when cuts, screens, and passes are executed with proper techniques and precision. Players must be able to anticipate and read defensive deployment and be alert to counter any defensive overplay or carelessness.
In the case of a throw-in that goes out of bounds and is not touched by a player in the game, the ball is returned to the original throw-in spot. After a score, field goal, or free throw, any player of the team not credited with the score shall put the ball into play from any point out-of-bounds at the endline of the court where the point(s) were scored. This player may pass the ball to a teammate behind the endline. However, the ball cannot be passed into the backcourt if it is out-of-bounds in the team's frontcourt or at the midcourt line.
In US high school basketball, if a player's momentum takes them out of bounds or they step out accidentally, they can re-establish with one foot back in bounds and be the first to touch the ball. At the NCAA or NBA level, this is not allowed.
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Throw-in rules
In basketball, a player is out of bounds when they touch the floor or any object on or outside a boundary. Their position in the air is determined by the last point of contact with the floor before jumping.
- The throw-in starts when the ball is given to the player taking the throw-in.
- The player must release the ball within 5 seconds of receiving it and gaining control.
- No player can cross the boundary line or occupy positions parallel or adjacent to the baseline before the ball is thrown in.
- The ball must be thrown directly inbounds. If it touches the floor, any object on or outside the boundary line, or anything above the playing surface, it is a violation and the throw-in must be retaken.
- If the ball goes out of bounds without being touched by a player, it is returned to the original throw-in spot.
- After a score, field goal, or free throw, a player from the non-scoring team puts the ball into play from any point out-of-bounds at the endline where the points were scored.
- A free throw violation by the shooter or their teammate results in a throw-in from out-of-bounds on either side of the extended free-throw line.
- In US high school basketball, a player can go out of bounds accidentally and re-establish themselves with one foot back in bounds before touching the ball. In NCAA and NBA, this is not allowed.
- In some cases, if the ball is interfered with by a player on the bench or sideline, it is awarded to the offended team out-of-bounds near the spot of the violation.
- If the ball goes out-of-bounds and was last touched simultaneously by two opponents, or if the officials are unsure, play is resumed with a jump ball between the two involved players in the nearest restraining circle.
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Inbounding the ball
In certain situations, the referee will assign a designated spot for the thrower to stand within during the throw-in. The thrower must keep one foot on or over this spot until they release the ball. However, they are allowed to jump and/or move one or both feet, as long as one foot remains on or over the designated spot.
If the ball goes out-of-bounds and was last touched by two opponents, play is resumed with a jump ball between the two players involved in the nearest restraining circle. If the ball goes out-of-bounds without being touched by a player, it is returned to the original throw-in spot. After a score, field goal, or free throw, a player from the team not credited with the score puts the ball into play from any point out-of-bounds at the endline of the court where the points were scored.
In US high school basketball, if a player's momentum takes them out of bounds or they step out accidentally, they can re-establish with one foot back in bounds and be the first to touch the ball. However, in NCAA or NBA basketball, this is not allowed.
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Out-of-bounds plays
In basketball, a player is out of bounds when they touch the floor or any object on or outside a boundary. Similarly, the ball is out of bounds when it touches a player who is out of bounds, any other person, the floor, or any object on, above, or outside a boundary.
- Communication: It is crucial for players to know the out-of-bounds play that is being run. While the inbounder can call out the play, effective teams ensure that all players know their roles even without verbal communication. Hand signals can also be used to confuse opponents and add an element of unpredictability.
- Screening: Effective screening is a key component of successful out-of-bounds plays. Players should identify who they need to screen and make sure they are setting screens on the right person. This can create openings for teammates and keep the defense guessing.
- Variations: Running different variations of out-of-bounds plays can keep the defense on their toes. For example, after running a play a few times, adding a counter can catch the defense off-guard. This might involve a player faking a diagonal screen before executing a different move.
- Timing: The timing of an out-of-bounds play is critical. Players must be aware of the five-second rule, which dictates that the ball must be released within five seconds of receiving it. Quick decision-making and execution are essential to avoid violations.
- Awareness: Players should be aware of their surroundings and the positioning of both teammates and opponents. This includes knowing the locations of teammates along the baseline and avoiding violations by not crossing the boundary line before the ball is inbounded.
- Adapting to the Situation: Out-of-bounds rules vary slightly between different levels of basketball. For example, in US high school basketball, a player can re-establish with one foot inbounds and then be the first to touch the ball. Understanding the specific rules of the competition is crucial for developing effective out-of-bounds plays.
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Frequently asked questions
A player is out of bounds when any part of their body touches the floor or any object on or outside a boundary line. If a player is in the air, their location is determined by the last point of contact they had with the floor.
The ball is out of bounds when it touches a player who is out of bounds, any other person, the floor, or any object on, above, or outside a boundary line.
If a player goes out of bounds and then touches the ball, it is a violation. In US high school basketball, a player can go out of bounds and then be the first to touch the ball when they return inbounds, as long as they re-establish with one foot back in bounds.
If the ball goes out of bounds without being touched by a player, it is returned to the original throw-in spot.
If the official cannot determine who last touched the ball before it went out of bounds, play is resumed by a jump ball between the two involved players in the nearest restraining circle.








































