General Pool Rules 3.31 - 3.40
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Balls Moving Spontaneously
Spotting Balls
Jawed Balls
Breaking Subsequent Racks
Play by Innings
Object Ball Frozen to Cushion or Cue Ball
Cue Ball in Hand Foul
3.31 BALLS MOVING SPONTANEOUSLY
If a ball shifts, settles, turns or otherwise moves by itself, the ball shall remain in the position it assumed and play continues. A hanging ball that falls into a pocket by itself after being motionless for 5 seconds or longer shall be replaced as closely as possible to its position prior to falling, and play shall continue. If an object ball drops into a pocket by itself as a player shoots at it, so that the cue ball passes over the spot the ball had been on, unable to hit it, the cue ball and object ball are to be replaced to their positions prior to the stroke, and the player may shoot again. Any other object balls disturbed on the stroke are also to be replaced to their original positions before the shooter replays.
3.32 SPOTTING BALLS
When specific game rules call for spotting balls, they shall be replaced on the table on the long string after the stroke is complete. A single ball is placed on the foot spot; if more than one ball is to be spotted, they are placed on the long string in ascending numerical order, beginning on the foot spot and advancing toward the foot rail. When balls on or near the foot spot or long string interfere with the spotting of balls, the balls to be spotted are placed on the extension of the long string in front of the foot spot (between the foot spot and the center spot), as near as possible to the foot spot and in the same numerical order as if they were spotted behind the foot spot (lowest numbered ball closest to the foot spot)..
3.33 JAWED BALLS
If two or more balls are locked between the jaws or sides of the pocket, with one or more suspended in air, the referee shall inspect the balls in position and follow this procedure: he shall visually (or physically if he desires) project each ball directly downward from its locked position; any ball that in his judgement would fall in the pocket if so moved directly downward is a pocketed ball, while any ball that would come to rest on the bed of the table is not pocketed. The balls are then placed according to the referee's assessment, and play continues according to specific game rules as if no locking or jawing of balls had occurred.
3.34 ADDITIONAL POCKETED BALLS
If extra balls are pocketed on a legal scoring stroke, they are counted in accord with the scoring rules for the particular game.
3.35 NON-PLAYER INTERFERENCE
If the balls are moved (or a player bumped such that play is directly affected) by a non-player during the match, the balls shall be replaced as near as possible to their original positions immediately prior to the incident, and play shall resume with no penalty on the player affected. If the match is officiated, the referee shall replace the balls. This rule also applies to act of God interferences, such as earthquakes, hurricanes, light fixture falling, power failures, etc. If the balls cannot be restored to their original positions, replay the game with the original player breaking. This rule is not applicable to 14.1 Continuous where the game consists of successive racks: the rack in progress will be discontinued and a completely new rack will be started with the requirements of the normal opening break (players lag for break). Scoring of points is to be resumed at the score as it stood at the moment of game disruption.
3.36 BREAKING SUBSEQUENT RACKS
In a match that consists of short rack games, the winner of each game breaks in the next. The following are common options that may be designated by tournament officials in advance:
(a) Players alternate break.
(b) Loser breaks.
(c) Player trailing in game count breaks the next game.
3.37 PLAY BY INNINGS
During the course of play, players alternate turns (innings) at the table, with a player's inning ending when he either fails to legally pocket a ball, or fouls. When an inning ends free of a foul, the incoming player accepts the table in position.
3.38 OBJECT BALL FROZEN TO CUSHION OR CUE BALL
This rule applies to any shot where the cue ball's first contact with a ball is with one that is frozen to a cushion or to the cue ball itself. After the cue ball makes contact with the frozen object ball, the shot must result in either:
(a) A ball being pocketed, or;
(b) The cue ball contacting a cushion, or;
(c) The frozen ball being caused to contact a cushion attached to a separate rail, or;
(d) Another object ball being caused to contact a cushion with which it was not already in contact.
Failure to satisfy one of those four requirements is a foul. (Note: 14.1 and other games specify additional requirements and applications of this rule; see specific game rules.) A ball which is touching a cushion at the start of a shot and then is forced into a cushion attached to the same rail is not considered to have been driven to that cushion unless it leaves the cushion, contacts another ball, and then contacts the cushion again. An object ball is not considered frozen to a cushion unless it is examined and announced as such by either the referee or one of the players prior to that object ball being involved in a shot.
More on frozen balls in 8-ball pool.
3.39 PLAYING FROM BEHIND THE STRING
When a player has the cue ball in hand behind the head string (in the kitchen), he must drive the cue ball to a point across the head string before it contacts either a cushion, an object ball, or returns to the kitchen. Failure to do so is a foul if a referee is presiding over a match. If no referee, the opponent has the option to call it either a foul or to require the offending player to replay the shot again with the balls restored to their positions prior to the shot (and with no foul penalty imposed).
Exception: if an object ball lies on or outside the head string (and is thus playable) but so close that the cue ball contacts it before the cue ball is out of the kitchen, the ball can be legally played, and will be considered to have crossed the head string. If, with cue ball in hand behind the headstring and while the shooter is attempting a legitimate shot, the cue ball accidentally hits a ball behind the head string, and the cue ball crosses the line, it is a foul.
If with cue ball in hand behind the head string, the shooter causes the cue ball to hit an object ball accidentally, and the cue ball does not cross the headstring, the following applies: the incoming player has the option of calling a foul and having cue ball in hand, or having the balls returned to their original position, and having the offending player replay the shot. If a player under the same conditions intentionally causes the cue ball to contact an object ball behind the headstring, it is unsportsmanlike conduct.
3.40 CUE BALL IN HAND FOUL
During cue ball in hand placement, the player may use his hand or any part of his cue (including the tip) to position the cue ball. When placing the cue ball in position, any forward stroke motion of the cue stick contacting the cue ball will be considered a foul if not a legal shot.
Continue Reading on BCA General Rules:
BCA General Rules 3.01 - 3.10
BCA General Rules 3.11 - 3.20
BCA General Rules 3.21 - 3.30
BCA General Rules 3.41 - 3.43