Top of the key distance

Top of the key distance DEFAULT

The Distance From the Hoop to the Free Throw Line in Basketball

The size of a basketball court varies among leagues. A professional court is larger than a high school court. Other court dimensions, such as the 3-point line, also vary. The distance of the free-throw line from the hoop is the same for all levels of play, except international competitions.

Free-Throw Distance

The governing organizations for basketball measure the distance of the free-throw line from the front plane of the backboard. The NBA, the NCAA and the National Federation of State High School Associations dictate that the free-throw line is 15 feet horizontally from the plane of the front of the backboard. The free-throw line on international courts is 15.09 feet from the backboard.

Distance from Hoop

The edge of the hoop is six inches from the plane of the face of the backboard. The ring has an interior diameter of 18 inches. This places the front edge of the hoop about two feet from the backboard. The free-throw line is about 13 feet horizontally from the front edge of the hoop. International hoops must be a minimum of 450 mm and a maximum of 459 mm, which is between 17.72 and 18 inches. The free-throw line is still approximately 13 feet horizontally from the face of the backboard, and 16 feet, 5 inches measured point to point through the air.

Court Size

Courts for NBA games in the U.S. are 94 feet long and 50 feet wide. College courts, men's and women's, are the same size as NBA courts. High school courts are a little shorter at 84 feet long but the same width, 50 feet. Courts governed by the International Basketball Federation, or FIBA, for international competitions are close to NBA size, but they are measured in millimeters. Courts for international games are 32,000 mm long by 19,000 mm wide, which is 91.86 feet by 49.21 feet.

Playground Hoops

Playground basketball courts are typically created at the same specifications of other courts with the free-throw line being set 15 feet from the backboard. However, there is no regulations for playground courts, so the dimensions could be different from those used in high school, college or professional games.


Writer Bio

Based in Austin, Texas, Jolie Johnson has been in the fitness industry for over 12 years and has been writing fitness-related articles since 2008 for various websites. She received her Bachelor of Arts in English and philosophy from the University of Illinois.



Basketball: The Court

Sports >> Basketball >> Basketball Rules

Basketball courts vary in size depending on the gym and the level of play. However, some features remain the same. The size and height of the basket, the distance from the free throw line, etc.

Here is a picture of the dimensions and areas of the court used for high school basketball:

Basketball court dimiensions

Click picture for larger view

Size of the Basketball Court
  • NCAA college and NBA - 94 feet long by 50 feet wide
  • High School - 84 feet long by 50 feet wide
  • Junior High - 74 feet long by 42 feet wide
Three Point Arc

The three point arc is a certain distance from the basket. Any shot made outside of the arc is worth three points instead of the normal two. The distance from the basket to the three point arc changes for different levels of basketball play:
  • NBA - 23 feet 9 inches at the top, 22 feet at the sides
  • Men's NCAA college - 20 feet 9 inches
  • WNBA - 20 feet 6 inches
  • High School and Women's NCAA college - 19 feet 9 inches
Free Throw Line

The free throw line is located 15 feet from the backboard. After certain types of fouls or violations, players will be awarded a shot, or shots, from the free throw line.

The Free Throw Lane or Key

The area between the free throw line and the base line is called the "lane" or the "key". How wide the key is depends on the level of play. It is 12 feet wide for college and high school basketball, but 16 feet wide in the NBA.

Offensive players are only allowed to be in the lane for 3 seconds before a shot hits the rim or they will get called for a three-second violation. Also, players line up on the side of the free throw lane during free throws. They are not allowed to enter the lane for a rebound until the shooter releases the shot.

The FIBA international free throw lane used to be trapezoidal shaped. This was changed recently and now they use the NBA shaped lane.

Free Throw and Center Circle

The circle at the top of the key is used for jump balls on that end of the court. The center circle is for the jump ball at the start of the game or jump balls at the center of the court.

The Basket

The basket is located 4 feet out from the baseline. The rim should be 10 feet high.

Out of Bounds

The bounds of the basketball court are described by the sidelines, running the length of the court, and the base lines (or end lines) at the end of the court.

FIBA Court
FIBA basketball court
Author: Robert Merkel
click for larger view

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National Basketball Association Rules for the Distance of a Three-Point Shot

By M.L. Rose

An NBA three-point corner shot is about 22 feet from the basket.

The National Basketball Association, or NBA, added the three-point shot in 1979. Previously, all baskets scored two points. The three-point shot gives teams the opportunity to reduce a large deficit quickly, and also forces defenses to spread out to guard the three-point line. The NBA boasts the farthest three-point line in basketball at 22- to 23-feet-9 inches away as you go around the arc. If you can hit an NBA three-pointer, you’ll be a three-point threat at any level of play.

NBA Three-Point Line

At most levels of basketball, the three-point line is an arc, so three-point shots are the same distance no matter where you are on the court. The NBA three-point line, however, is basically a three-part structure with two straight lines and an arc in the middle. The straight lines are 3 feet inside each sideline and run from the baseline to just short of the free throw line extended. The arc that intersects the straight lines is 23 feet, 9 inches from the basket. The shortest possible three-point shot, from the corner, is 22 feet from the hoop. The three-pointer gets progressively longer as you move toward the top of the arc.

Creating an NBA Three-Point Line

Very few basketball courts have an NBA three-point line. To practice an NBA three-pointer, or to play games using NBA three-point rules, use painter’s tape to mark a straight line 3 feet in from the sidelines of a standard court. Run the tape from the baseline to even with the free-throw line. Cut a string to 23 feet, 9 inches. Have someone hold one end of the string and stand directly below the hoop. Take the other end and stand past the top of the key so the string is taut and parallel to the sides of the lane. Mark the spot with tape. Continue to hold the string as you walk toward one of the straight lines -- while the other person remains under the basket -- and set tape marks at regular intervals, such as 6 inches, until you reach the straight line you created previously. Remove the part of the straight line that extends beyond the arc. Perform the process on both sides of the court.


Practice NBA three-point shots informally after setting up your three-point line by simply shooting around. Warm up before you begin practicing by shooting from a shorter distance and with dynamic arm stretches, such as arm circles and swings. For a more focused practice, try a timed drill by setting a timer for five minutes, then counting how many three-pointers you can sink during that time. You can set specific shooting spots behind the three-point line, from one corner to the other, then progress from spot to spot, to make sure you practice shooting from a variety of angles. In the NBA's official three-point contest, for example, players take five shots from each of five spots spread across the court.

Playing Games

To use the NBA three-point line in your basketball league, or for a casual game, set up the three-point line, then play by standard NBA rules. Your feet must be completely behind the three-point line before you shoot. If your toe touches the line as you jump, for example, the shot is only worth two points. If you’re behind the line when you jump, but land on the line after you release the ball, a successful shot is worth three points. Remember that three-point shots from the corner are 1 foot, 9 inches shorter than shots from beyond the arc. However, shooting from the top of the key gives you a chance to score on shots that bounce off the backboard. The backboard is less likely to help you when you’re shooting from the corner.


Writer Bio

M.L. Rose has worked as a print and online journalist for more than 20 years. He has contributed to a variety of national and local publications, specializing in sports writing. Rose holds a B.A. in communications.

2 Simple Keys for More Distance - Improve Your Game Instantly

What Is Top Of The Key In Basketball?

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Basketball top of the key

The top of the key in basketball is a location on the court that refers to the top most point on the arched line just above the key.

The key, also known as the paint, is the area of the court just below the net, with the outermost border being the free throw line. Defensive players are called for 3-second violations in the paint.

Size of the Key

Basketball Size of the Key

The basketball court has gone through numerous changes throughout the sport's history. There have been several sizing and dimension changes to the height and radius of the key and its semicircle. The first iteration of the key was much larger than what it looks like today.

There is still no standard for how large the key should be, with it varying in different leagues (NBA, NCAA, and FIBA). In the NBA, the key is 16 feet wide and 19 feet from the baseline to the free throw line. The semi-circle at the top of the key has a radius of 6 feet. For NCAA, the key is 12 feet wide and also 19 feet from the baseline to the free throw line. The semi-circle at the top of the key for NCAA is also 6 feet.

Top of the Key Strategy

In the modern game, players have chosen not to make as many shot attempts from the top of the key. The reason for this change is because shots from the top of the key are the most inefficient for players to take. Out of all two-pointer attempts it is the furthest spot away from the basket. Three pointers are only slightly further away from the basket and are worth three points instead of two.

Shots from the top of the key yield about 86 points per 100 possessions. That is far below the number for corner three pointers (119 points per 100 possessions). Due to that difference being uncovered teams have had their players take less shots from the top of the key in today's game.

However that does not mean it is irrelevant in the modern sport. It still is useful for setting up plays and providing a location that players can reference when spacing themselves out on the court.


What is the top of the key?

The top of the key is the space that is just in front of the three-point line and just past the free throw line. This is a popular shooting spot, so it's common in zone defenses to have a player cover the top of the key.

What is the key or paint?

The key or paint is the square box below each team's hoop. The key includes the free throw line. 3-second violations are called when a defensive player stays in the paint for longer than three seconds.

What is the size of the key in basketball?

The NBA's key is 16 feet wide, the NCAA's is 12 feet, and FIBA's is also 16 feet but does not have the full circle. Both the NCAA and the NBA have a semi circle with a radius of 6 feet at the top of the key, which is 19 feet from the baseline.




Key top distance the of

Everything You Need to Know About Basketball Court Dimensions

The key is 16 feet wide and 19 feet from the baseline to the foul line. A semicircle with a six-foot radius extends from the foul line. Some courts have the other side of the half-circle drawn in a dotted line inside the key to complete the circle and create a clear boundary for any jump balls.

The backboard protrudes four feet out from the baseline, and the rim of the basket hangs 10 feet off the ground. Subtracting the four feet overhang from the 19-foot length of the key, we get the familiar 15-foot distance from the foul line to the front of the backboard. It’s a misconception that the foul line is 15 feet from the center of the basket. The backboard itself measures six feet wide and 42 inches high.

Inside the key, a four-foot arc is aligned with the center of the basket to designate the restricted arc. If a defender is inside this semicircle, he cannot draw a charging foul. Along both sides of the key, lines are drawn three feet apart to create the standing positions for other players during a free throw attempt, starting with a box that is seven feet from the baseline and one foot wide.

Outside the key, the three-point line forms an imperfect arc stretching one side of the baseline to the other. The arc isn’t a perfect circle because it would run out of bounds on the sides of the court.

Instead, the three-point line runs in a straight line from the baseline out 16 feet, nine inches, at which point the line begins to curve. The straight lines are an even 22 feet from the center of the basket, and on the arc, the distance is 23 feet and nine inches.

Starting at the baseline and running 28 feet toward the center of the court, a line bounds the team bench area. The line also acts as the starting place for inbounds passes after timeouts and fouls.

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How the new 3-point line might affect college basketball

College basketball's 3-point line in the DI men's game moves back this season for the first time since 2008. In case you missed the news, the NCAA Playing Rules Oversight Panel approved moving it back to 22 feet, 1¾ inches in June. That's the same distance used in international basketball.

So how will the new distance affect college basketball? Quite a bit, if history is any indicator. Expect 3-point shooting percentages to drop at first while driving lanes and post play opens up. But the 3-point shot will remain the most valuable in the game. More than that soon. Let's start first with a broader look at what's happened since the shot first came into being.

The 3-point line debuted in Division I men’s basketball in 1987. That year, teams attempted just 9.2 3-pointers per game, making 3.5. The 3-pointer barely made an impact — accounting for just 14.4 percent of all points in Division I that season. That didn't last long.

By 2008, the college basketball landscape was fully submerged in the three ball. The popularity of the shot had skyrocketed. Made and attempted 3-pointers per game doubled, and the shot was responsible for a record 28.9 percent of all points in college basketball.

That offseason — 21 years after the introduction of the 3-point line — the NCAA voted to move the line back one foot, to 20 feet, 9 inches. That's where it would stand for 11 years before the changes we'll see this season.

(tap or click here to view this graphic in a new window)

The 2009 season — the first with an extended line since the shot was introduced — saw an immediate drop-off in 3-point performance.

In all but two of the 21 seasons from 1988 to 2008, 3-point field goal attempts per game and made 3-pointers per game rose across all of Division I. In 2009, both saw their biggest drops in the history of the shot, with teams shooting 0.8 fewer 3-pointers per game and making 0.4 fewer. Teams also dropped 0.8 percent in accuracy, from a Division I-wide 35.2 percent in 2008 to 34.4 percent in 2009 — the lowest mark since 2000.

RANKING: The best 3-point shooting college basketball teams this century

But more recent history can give us an even better look at how this rule change will impact the game. 

In the past two seasons, the NIT debuted several experimental rules in its postseason tournament, one of which included the new 22 feet, 1 ¾ inch 3-point line.

To get an idea of how modern teams will react to the change, we compared how teams performed from 3-point range in the NIT over the past two years vs. how those same teams performed in the regular season and conference play. 

In the 124 NIT games, teams shot 2 percent worse from 3-point range compared to their regular-season performance, while actually attempting 0.3 more 3-pointers. 

Regular season35.8%7.8922.07

And this isn’t just a difference in postseason play of 3-point shooting dropping off. We did the same comparison to teams in 2017, when the NIT 3-point line was the same as the regular-season 3-point line. That year, teams actually shot 0.48 percent better from 3-point range in the NIT compared to the regular season, and took 2.6 more 3-pointers in NIT games than in regular season games.

FULL RULE CHANGE DETAILS: Men’s college basketball 3-point line extended to international distance

But numbers only tell one part of the story. What about the people who will actually be affected?

In his seven seasons at Winthrop coach Pat Kelsey has transformed Winthrop into a dominant force in the Big South, and he’s done it with a heavy focus on 3-pointers. 

Last season, Winthrop led Division I with 12.4 made 3-pointers per game, in a year where the DI average was at an all-time high of 7.8 per game. The Eagles got 44.7 percent of their total points from 3-pointers in 2019 — the third highest mark in the country, and way above the DI average of 32 percent.

His initial reaction to the new rule change? 

“We’ll double down and shoot more,” he told “It doesn’t bother me for one second. Our guys don’t see any hesitation from me, so I sure as heck don’t want to see any hesitation from them. It’s still a very high-percentage shot.”

Kelsey mentioned that the 3-pointer is one of the most valuable shots in college basketball. He doesn’t see that changing by moving the line back. 

The numbers back him up on both counts.

We can look at the expected value for the three different major categories of shot (3-pointers, 2-pointers, and free throws) by taking the possible points for each made shot and multiplying it by how often a shot is made. This is a bit of an oversimplification, since it doesn’t take into account the difference between a layup and an 18-foot jump shot, but it gives a pretty good idea.

And that idea is that since the adoption of the 3-point line in 1987, the 3-pointer has had the highest expected value of any of those three shots every single year. That includes 2009, when 3-point shooting saw its biggest drop in performance during the first year with an extended line.

(tap or click here to view this graph in a new window)

Still, Kelsey does believe the new line will affect the game, mainly by increasing spacing on the court. In fact, his team has occasionally practiced with the NBA 3-point line (23 feet, 9 inches at the center) taped onto their court to drive home the value of proper spacing. Good spacing, Kelsey says, opens up driving lanes and increases post touches, which in turn help increase high-percentage 3-point chances.

“That’s how you generate 3-point shots, by attacking the basket and collapsing the defense,” he said. “The highest percentage 3-point shot is inside-out.”

MEN'S BASKETBALL Home | Stats | Rankings

Wofford coach Jay McAuley agrees.

“Our motto has always been playing inside out,” he said. “It’s not like we just come down the court and jack threes up all day.”

McAuley is in his first year as Wofford’s head coach this season, but he’s been around the team in assistant and associate head coaching roles long enough to know that the Terriers have built an identity around the 3-point shot.

Last season, Wofford shot 41.4 percent from deep — the second-best mark of any team in Division I. And McAuley believes that Wofford is just capitalizing on a growing trend in the sport.

“The way the game is changing, from the pro level all the way down, everyone is looking for shooters,” he said.

McAuley is right. Three-point shooting has become much more prevalent in the college game in recent years. 

From 1987 to 2014, Division I teams had an average of 5.8 made 3-pointers on 16.6 attempts per game. In the past five years, teams have seen an average of 7.3 made 3-pointers on 20.9 attempts per game. 

The 2016 season saw record highs in both made 3-pointers and 3-point attempts per game across Division I with 7.11 and 20.49 respectively. Those records have been broken every year since. 

And if we look back at percentage of total points coming from 3-pointers, the trend is even more obvious.

(tap or click here to view this graph in a new window)

As the head of a team somewhat leading that revolution, McAuley said that Wofford will fine-tune its strategy to accommodate the new line.

“We’re going to have to have some more plays that attack long closeouts,” he said. “With our ability to shoot the basketball the way we do, people are going to have to come out and guard us a little further out. So, I would be silly if I didn’t have some of those tweaks planned moving into this year.”

Apart from minor changes, McAuley doesn’t see 3-point heavy teams like Wofford being too frazzled by the change. Kelsey agrees, calling his strategy heading into this year “business as usual.” But both still predict a nation-wide drop in performance.

“For us, maybe it doesn’t change as much,” McAuley said. “But as a whole for the college basketball landscape, it’s going to be a big deal.”

Daniel Wilco has worked at the AJC, Sports Illustrated, and SEC Country. His writing has also appeared on, Men’s Health, and The Cauldron.

The views on this page do not necessarily reflect the views of the NCAA or its member institutions.

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Basketball court

Rectangular playing surface, with baskets at each end

"Basketball Arena" redirects here. For the arena in London, see Basketball Arena (London).

The home court of the Miami Heatof the National Basketball Association.

In basketball, the basketball court is the playing surface, consisting of a rectangular floor, with baskets at each end. Indoor basketball courts are almost always made of polished wood, usually maple, with 3 metres (9.8 ft)-high rims on each basket. Outdoor surfaces are generally made from standard paving materials such as concrete or asphalt.


Basketball courts come in many different sizes. In the National Basketball Association (NBA), the court is 94 by 50 feet (28.7 by 15.2 m). Under International Basketball Federation (FIBA) rules,[1] the court is slightly smaller, measuring 28 by 15 meters (91.9 by 49.2 ft). In amateur basketball, court sizes vary widely. Many older high school gyms were 84 feet (26 m) or even 74 feet (23 m) in length. The baskets are always 3.05 metres (10.0 ft) above the floor (except possibly in youth competition).

Basketball courts have a three-point arc at both baskets. A basket made from behind this arc is worth three points; a basket made from within this line, or with a player's foot touching the line, is worth 2 points. The free-throw line, where one stands while taking a foul shot, is located within the three-point arc at 15 feet from the plane of the backboard. A foul shot is worth 1 point, but if a shot is made from the foul line while in play it is still worth 2 points.[2]


  • Composite diagram of a basketball court with FIBA (top half only), NBA (both halves), and NCAA (men's & women's – bottom half only) markings


Court length94 ft28.65 m91.86 ft28 mSame as NBA
Court width50 ft15.24 m49.21 ft15 mSame as NBA
Rim height10 ft3.05 mSame as NBA
No Charge Zone arc4 ft1.22 m4.10 ft1.25 mSame as NBA
Center circle diameter12 ft3.66 m11.81 ft3.6 mSame as NBA
3-point line distance from the basket23.75 ft
22 ft in corner[b]
7.24 m
6.70 m in corner[b]
22.15 ft
21.65 ft in corner[c]
6.75 m
6.60 m in corner[c]
Main arc same as FIBA
Corners same as NBA
Same as FIBA[d]
Key (shaded lane or
restricted area) width
16 ft4.88 m16.08 ft4.9 mSame as NBA12 ft3.66 m
Free-throw line distance from point on the floor directly below the backboard15 ft4.57 m15.09 ft4.6 mSame as NBA
  1. ^NCAA Division I men's play used these dimensions in the 2019–20 season, with Divisions II and III adopting them for the 2020–21 season. Women's play in all divisions will adopt this distance in 2021–22.[4]
  2. ^ abThe NBA three-point line is 3 ft (0.91 m) from the sideline in a zone starting at the baseline and ending when it crosses the 23.75 feet (7.24 m) arc. The 22 feet (6.71 m) distance exists only at the points on the three-point line that are directly to the left and right of the basket center.
  3. ^ abThe FIBA three-point line is 2.95 feet (0.90 m) from the sideline in a zone starting at the baseline and ending when it crosses the 22.1 feet (6.7 m) arc. The 21.65 feet (6.60 m) distance exists only at the points on the three-point line that are directly to the left and right of the basket center.
  4. ^The NCAA three-point line is the same distance from the center of the basket as the FIBA line, but is 3.33 feet (1.01 m) from the sideline in the corners because the NCAA court is wider.


Most important terms related to the basketball court

Center circle[edit]

The only two players permitted to enter this area prior to the tipoff are the players contesting the jump ball (usually but not always centers). Both players jump when the referee throws the ball in the air, each attempting to tap the ball into the hands of a player of their own team.

Three-point line[edit]

The three-point line is the line that separates the two-point area from the three-point area; any shot made beyond this line counts as three points. If the shooting player steps on the line, it is counted as two points. Any foul made in the act of shooting beyond the three-point line would give the player three free throws if the shot does not go in, and one if it does.

The distance to the three-point line from the center of the basket varies depending on the level or league, and has changed several times. These are the current distances, with the league or level using each distance:

  • 19.75 ft (6.02 m): High schools (US)
  • 21.65 ft (6.60 m) to 22.15 ft (6.75 m): FIBA and NCAA
  • 22 ft (6.71 m) to 22.15 ft (6.75 m): WNBA
  • 22 ft (6.71 m) to 23.75 ft (7.24 m): NBA

The NBA adopted the three-point line at the start of the 1979–80 season. This is of variable distance, ranging from 22 feet (6.7 m) in the corners to 23.75 feet (7.24 m) behind the top of the key. During the 1994–95, 1995–96 and 1996–97 seasons, the NBA attempted to address decreased scoring by shortening the overall distance of the line to a uniform 22 feet (6.7 m) around the basket. It was moved back to its original distance after the 1996–97 season. FIBA and the NCAA both adopted the three-point line in 1985.

In most high school associations in the United States, the distance is 19.75 feet. This was formerly the distance for college basketball as well. On May 26, 2007, the NCAA playing rules committee agreed to move the three-point line back one foot to 20.75 feet for the men. This rule went into effect for the 2008–2009 season. The three-point line for women (NCAA) moved back one foot to 20.75 feet at the start of the 2011–12 season. During the 2019 offseason, the NCAA men's playing rules committee adopted the FIBA arc in a two-phase implementation, with Division I adopting the new arc in 2019–20 and other NCAA divisions doing so in 2020–21. The NCAA women's arc was moved to the FIBA arc starting in 2021–22.

The international distance, used in most countries outside the United States, as well as in FIBA and NCAA competition, is currently 6.6 m (21.65 ft) to 6.75 m (22.15 ft). The WNBA uses FIBA's arc except in the corner area, where the minimum distance is the NBA standard of 22 ft (6.71 m).


The perimeter is defined as the areas outside the free throw lane and inside the three-point line. Shots converted (successfully made) from this area are called "perimeter shots" or "outside shots" as called during older NBA games. If a player's foot is on the three-point line, the shot is considered a perimeter shot.

Low post area[edit]

The low post is defined as the areas that are closest to the basket but outside of the free throw lane.[5] This area is fundamental to strategy in basketball. Skilled low post players can score many points per game without ever taking a jump shot.


The key, free throw lane or shaded lane refers to the usually painted area beneath the basket; for the NBA, it is 16.02 feet (wider for FIBA tournaments). Since October 2010, the key has been a rectangle 4.9 m wide and 5.8 m long. Previously, it was a trapezoid 3.7 meters (12 ft) wide at the free-throw line and 6 meters (19 feet and 6.25 inches) at the end line.

The key is primarily used to prevent players from staying beneath the basket of the opponents' team for long periods (maximum three seconds).

The no charge zone arc is a semi-circular arc drawn around the area directly underneath the basket. With some exceptions, members of the defending team cannot draw charging fouls in this area. The no charge zone arc in all North American rule sets above high school level (NCAA men's and women's, NBA, and WNBA) has a radius 4 feet (1.22 m) from below the center of the basket. The no charge zone arc rule first appeared at any level of basketball in the NBA in the 1997–98 season.[6] The NCAA restricted area arc was originally established for the 2011–12 men's and women's seasons at a 3-foot (0.91 m) radius from below the center of the basket, and was extended to match the 4-foot radius for the 2015–16 season and beyond.

Other lines[edit]

On NBA floors, two hash marks are drawn at the end lines near the key to mark the area known as the lower defensive box. A defensive player is allowed to draw a charging foul within the restricted arc if the offensive player receives the ball and/or starts his drive within this area.[7]

Also, two lines are drawn on each of the sidelines, 28 feet from each of the endlines, which designates the extent of the coaching box and bench. This line marks the farthest extent a coach (aside from the sidelines) can stand. Directly behind this area is the team bench.

On the half-court line of NBA floors two lines extend outside the playing court, designating the place where substitutes wait before they can enter the playing court; directly behind this area are the various off-court officials such as the timekeeper and reserve referee.

FIBA changes[edit]

On April 26, 2008, FIBA announced several major rules changes involving the court markings. These changes took effect for major international competitions on October 1, 2010, after that year's World Championships for men and women, and became mandatory for other competitions on October 1, 2012 (although national federations could adopt the new markings before 2012). The changes were as follows.[8]

  • The shape of the key changed from a trapezoid to a rectangle as it is in the NBA, with NBA dimensions.
  • The three-point line moved back to 6.75 meters (22 ft 1.7 in) from 6.25 meters (20 ft 6.1 in), compared to 23 ft 9 in (7.24 m) for the NBA at the top of the arc.
  • The FIBA adopted the NBA's restricted area arc with a marginally wider radius of 1.25 meters (4 ft 1.2 in).


  1. ^"Official Basketball Rules 2006"(pdf). International Basketball Federation. 2006. Archived from the original on April 6, 2007. Retrieved April 14, 2007.
  2. ^Wissel, Hal (1994). Basketball: steps to success. United States: Human Kinetics Publishers, Inc. pp. ix. ISBN .
  3. ^"NCAA Men's and Women's Basketball Court"(PDF). NCAA. June 17, 2019. Retrieved October 9, 2019.
  4. ^"International 3-point line distance approved in women's basketball" (Press release). NCAA. June 3, 2021. Retrieved August 24, 2021.
  5. ^Basketball Glossary Terms, Definition, Lane violation, Low postArchived November 19, 2008, at the Wayback Machine
  6. ^"Shaq and the No Charge Zone Rule". Factuation. Factuation. July 1, 2015. Retrieved February 27, 2018.
  7. ^
  8. ^"The FIBA Central Board approves historic rule changes" (Press release). FIBA. April 26, 2008. Archived from the original on April 30, 2008. Retrieved April 28, 2008.

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