Editing Eight-ball (section)

==Standardized rules of play==
American-style eight-ball is played around the world by professionals and in many amateur leagues. Nevertheless, the rules for eight-ball may be the most inconsistent of any billiard game, as there are several competing sets of "official" rules.

The [[World Pool-Billiard Association]] (WPA), the governing body of pool which has continental and national affiliates around the world, promulgates standardized rules as ''Pool Billiards – The Rules of Play''.<ref name="WPARules">{{cite book |title=Pool Billiards – The Rules of Play |url= http://www.wpa-pool.com/pdf/web/WPA_Rules.pdf |date=January 1, 2008 |publisher=[[World Pool-Billiard Association]] |access-date=March 21, 2012 |archive-url= https://web.archive.org/web/20111119194935/http://wpa-pool.com/pdf/web/WPA_Rules.pdf |archive-date=November 19, 2011 |url-status=dead}}</ref> These are used for amateur and professional play.

Meanwhile, many amateur leagues – such as the [[American Poolplayers Association]] (APA) and its affiliate the Canadian Poolplayers Association (CPA), the Valley National Eight-ball Association (VNEA) and the [[BCA Pool League]] (BCAPL) – use their own rulesets which have slight differences from WPA rules and from each other. Millions of individuals play casually, using informal "[[house rule]]s" which vary not only from area to area but even from venue to venue.

===Equipment===
[[File:American-style pool table diagram (empty).png|thumb|Plan view of an American style pool table]]
The regulation size of a table's playing surface is {{Convert|9|by|4.5|ft|m|abbr=on}}, with the between-cushion area being {{cvt|100|by|50|in|cm}}, though exact dimensions may vary slightly by manufacturer. Some leagues and tournaments using the World Standardized Rules may allow smaller sizes, down to {{Convert|7|by|3.5|ft|m|abbr=on}}. Early 20th-century {{Convert|10|by|5|ft|m|abbr=on}} models are occasionally also still used. Professional competition generally employs regulation tables, while the amateur championships of various leagues, including [[Billiard Congress of America|BCAPL]], [[Valley National 8-Ball League Association|VNEA]], and APA, use the seven-foot tables in order to fit more of them into the hosting venue.

There are seven {{cuegloss|solids|solid-colored balls}} numbered 1 through 7, seven {{cuegloss|stripes|striped balls}} numbered 9 through 15, an {{cuegloss|8 ball}}, and a {{cuegloss|cue ball}}. The balls are usually colored as follows:
:{|class="wikitable" style="font-size:90%"
|-
!1
|bgcolor="gold" width=20px| ||solid yellow ||
!9
|bgcolor="white" width=5px| ||bgcolor="gold" width=5px| ||bgcolor="white" width=5px| ||yellow stripe
|-
!2
|bgcolor="blue" | ||solid blue ||
!10
|bgcolor="white"| ||bgcolor="blue"| ||bgcolor="white"| ||blue stripe
|-
!3
|bgcolor="red" | ||solid red ||
!11
|bgcolor="white"| ||bgcolor="red"| ||bgcolor="white"| ||red stripe
|-
!4
|bgcolor="purple" | ||solid purple ||
!12
|bgcolor="white"| ||bgcolor="purple"| ||bgcolor="white"| ||purple stripe
|-
!5
|bgcolor="orangered" | ||solid orange ||
!13
|bgcolor="white"| ||bgcolor="orangered"| ||bgcolor="white"| ||orange stripe
|-
!6
|bgcolor="forestgreen" | ||solid green ||
!14
|bgcolor="white"| ||bgcolor="forestgreen"| ||bgcolor="white"| ||green stripe
|-
!7
|bgcolor="maroon" | ||solid maroon ||
!15
|bgcolor="white"| ||bgcolor="maroon"| ||bgcolor="white"| ||maroon stripe
|-
!8
|bgcolor="black" | ||solid black ||
!•
|bgcolor="white" colspan=3| ||{{Cuegloss|Cue ball|cue ball}}, white
|}

Special sets designed to be more easily discernible on television substitute pink for the dark purple of the 4 and 12 and light tan for the darker maroon of the 7 and 15 balls, and these alternative-color sets are now also available to consumers.

===Setup===
To start the game, the {{cuegloss|object ball|object balls}} are placed in a triangular [[Rack (billiards)|rack]]. The base of the rack is parallel to the {{cuegloss|end rail}} (the short end of the pool table) and positioned so the apex ball of the rack is located on the {{cuegloss|foot spot}}. The balls in the rack are ideally placed so that they are all in contact with one another; this is accomplished by pressing the balls together toward the apex ball. The order of the balls should be random, with the exceptions of the 8-ball, which must be placed in the center of the rack (i.e., the middle of the third row), and the two back corner balls, one of which must be a stripe and the other a solid. The cue ball is placed anywhere the breaker desires behind the {{cuegloss|head string}}.{{sfnp|BCA|2005|p=46}}

===Break===
One person is chosen by some predetermined method (e.g., [[coin toss]], {{cuegloss|lag}}, or win or loss of previous game or match) to shoot first, using the cue ball to {{cuegloss|break}} the object-ball rack apart. In most leagues, it is the breaker's opponent who racks the balls, but in some, players break their own racks. If the breaker fails to make a successful break—usually defined as at least four balls hitting cushions or an object ball being pocketed—then the opponent can opt either to play from the current position or to call for a {{cuegloss|re-rack}} and either re-break or have the original breaker repeat the break.<ref name=":0">{{Cite web |title=Mastering 8-Ball Pool: A Complete Guide to Rules and Gameplay |url=https://foony.com/posts/mastering-8-ball-pool-online-billiards |access-date=2025-04-27 |website=Foony}}</ref>
[[File:8 ball break time lapse.jpg|right|thumb|300px|[[Long-exposure photography|Long-exposure photograph]] of a break in eight-ball]]

If the 8 ball is pocketed on the break, then the breaker can choose either to {{cuegloss|re-spot}} the 8 ball and play from the current position or to re-rack and re-break; but if the cue ball is also pocketed on the break (colloquially referred to as a "scratch") then the opponent is the one who has the choice: either to re-spot the 8 ball and shoot with {{cuegloss|ball-in-hand}} behind the {{cuegloss|head string}}, accepting the current position, or to re-break or have the breaker re-break.<ref name=":0" />

===Turn-taking===
A player (or team) continues to shoot until committing a {{cuegloss|foul}} or failing to legally pocket an object ball (whether {{cuegloss|safety|intentionally}} or not); thereupon it is the turn of the opposing players. Play alternates in this manner for the remainder of the game. Following a foul, the incoming player has {{cuegloss|ball-in-hand}} anywhere on the table, unless the foul occurred on the break shot, as noted previously.<ref name="WPARules" />

===Selection of the target group===
The table is "open" at the start of the game, meaning that either player may shoot at any ball. It remains open until one player legally pockets any called ball other than the 8 after the break. That player is assigned the ''group'', or ''suit'', of the pocketed {{nowrap|ball{{snd}}1 to 7 (solids) or 9 to 15 (stripes){{snd}}}}and the other suit is assigned to the opponent. Balls pocketed on the break, or as the result of a foul while the table is still open, are not used to assign the suits.{{sfnp|BCA|2005|p=47}} Once the suits are assigned, they remain fixed throughout the game. If any balls from a player's suit are on the table, the player must hit one of them first on every shot; otherwise a foul is called and the turn ends. After all balls from the suit have been pocketed, the player's target becomes the 8 for the remainder of the game.

===Pocketing the 8 ball===
Once all of a player's (or team's) group of object balls are pocketed, the player attempts to sink the 8 ball. In order to win the game, the player first designates which pocket the 8 ball will be pocketed into and then successfully pockets the 8 ball into that pocket. If the player knocks the 8 ball off the table, the player loses the game. If the player pockets the 8 ball and commits a foul or pockets it into another pocket than the one designated, the player loses the game. Otherwise (i.e., if the 8 ball is neither pocketed nor knocked off the table), the shooter's turn is simply over, even if a foul occurs. In short, a world-standardized rules game of eight-ball, like a game of nine-ball, is not over until the "{{cuegloss|money ball}}" is no longer on the table. The rule has been increasingly adopted by amateur leagues.

===Winning===
A player wins the game if that player legally pockets the 8 ball into a designated pocket after all of their object balls have been pocketed. Because of this, it is possible for a game to end with only one of the players having shot, which is known as "running the table" or a "denial"; conversely, it's also possible to win a game ''without'' taking a shot; such a scenario may occur if the opposing player illegally pockets the 8 ball on any shot other than the break (such as sinking the 8 ball in an uncalled pocket, knocking the 8 ball off the table, sinking the 8 ball when a player is not yet on the black ball, or sinking both the 8 ball and the cue ball off a single shot). The rules on what happens when the 8 ball is pocketed off the break vary by the rules in question {{crossref|printworthy=y|(see {{section link||Fouls}}, below)}}.

===Fouls===
The general rules of pool apply to eight-ball, such as the requirements that the cue ball not be pocketed and that a cushion be hit by any of the balls after the cue ball has struck an object ball.{{sfnp|BCA|2005|pp=35, 45}} Fouls specific to eight-ball are:
*The shooter fails to strike one of their own object balls (or the 8 ball when it is the legal ball) with the cue ball, before other balls are contacted by the cue ball. This excludes "{{cuegloss|split}}" shots, where the cue ball strikes one of the shooter's and one of the opponent's object balls simultaneously.
*If an attempt is made to pocket a ball, and the ball hits the pocket, bounces out and lands on the ground, the ball is placed in the pocket and the game continues.
*The shooter shoots the black 8 ball without designating the pocket to opposite team members or the match referee in advance.
*The shooter deliberately pockets the opponent's balls while shooting the 8 ball.
*On the break shot, no balls are pocketed and fewer than four balls reach the cushions, in which case the incoming player can demand a re-rack and take the break or force the original breaker to re-break, or may take ball-in-hand behind the {{cuegloss|head string}} and shoot the balls as they lie.