General Definitions - Montreal Pool League

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Administrative authority

Persons or organizations, other than referees, that have responsibility for the administration of CSI events. Examples include, but are not limited to:
a. the CSI National Office;
b. officials of CSI sanctioned or sponsored regional, state or local associations;
c. tournament directors and event officials;
d. any person designated by any of the above to exercise administrative authority.
With the exception of settling protests, administrative authority primarily concerns matters other than the game itself. Examples include, but are not limited to: event organization, drawing and maintaining brackets and schedules, dress codes, eligibility, event venue management, finances and prize distribution, referee management, etc.
Above

The direction moving from any point on the table toward the head of the table. When referring to the head string, above the head string is also referred to as "behind the head string", "behind the line", or “in the kitchen”. (See Diagram 1).
Ball in Hand

When the cue ball may be placed anywhere on the bed of the table. Also referred to as “cue ball in hand”.
Apex

The position of the front ball of the rack.
Ball in Play

A ball that, during a game, is on the bed of the table, in motion on or over the table, or falling into a pocket.
Ball in Hand Behind the Head String

When the cue ball may be placed anywhere behind the head string on the bed of the table. Also referred to as “ball in hand behind the line”..
Base of the Ball

The point at which the ball touches the bed of the table (see Diagram 7).
Bank Shot

A shot in which the called ball, before being pocketed, contacts one or more cushions attached to a rail not adjacent to the called pocket. Incidental contact with a cushion attached to a rail adjacent to a called pocket does not constitute a bank shot. (A.R.D. Bank shot)
Behind the Head String

The area of the bed of the table between the head string and the head cushion. Also referred to as “the kitchen” or "behind the line". The area behind the head string does not include the head string.
Bed of the Table

The cloth-covered playing surface within the cushions of the table. The cloth-covered tops of the cushions are not part of the bed.
Below

The direction moving from any point on the table toward the foot of the table (see Diagram 1).
Behind the Line

See "Behind the Head String"
Break Shot

The first shot of a game.
Break Cue

A cue used primarily for, and usually designed for, break shots.
Butt

The end of a cue opposite the tip.
Break Box

When specified by Administrative Authority, a marked or designated area of the kitchen in which the cue ball must be placed for the break shot.
Called Ball

In a call shot game: the object ball the player designates to be pocketed.
Call Shot Game

Game in which the specific game rules require the player, in advance of each shot, to designate the ball to be pocketed and the pocket into which it will be made.
Carom Shot

A shot in which the cue ball, before contacting the called ball, first contacts one or more other balls. (A.R.D. Carom Shot)
Called Pocket

In a call shot game, the pocket the player designates for the called ball.
Center String

A line along the bed of the table, aligned between the centers of the side pockets (see Diagram 1).
Center Spot

The point at which the long string and center string intersect (see Diagram 1).
Cue

A device, usually wooden and tapered, used to strike the cue ball.
Combination Shot

1. A shot in which the cue ball first contacts a ball other than the called ball, followed by that ball then contacting the called ball or other object ball(s) which then contact the called ball. (A.R.D. Combination Shot)
2. A shot in which the called ball contacts another ball that is blocking the called ball’s path to the called pocket, and the blocking ball is pocketed in the called pocket before the called ball. (A.R.D. Combination Shot)
Cue Tip

A piece of leather, fibrous, or pliable material, attached to the shaft end of the cue along its long axis, which contacts the cue ball during a stroke.
Cue Ball

The ball that must be legally struck with the cue tip during a shot. Usually a predominately white ball, sometimes marked with various small circles, logos, or dots.
Diamonds

Inlays or markings on the rails used for references or target points (see Diagram 1).
Cushion

A strip of cloth-covered rubber that borders the inside of the rail (see Diagram 1).
Double Hit

1. When the cue tip strikes the cue ball more than once on a single stroke.
2. When any part of the cue contacts the cue ball after the cue ball’s initial contact with an object ball. (A.R.D. Double Hit)
Disturbed Ball

A ball that has been accidentally touched or moved by the player's body, clothing or equipment.
Event

A match, game, series of matches or games, league schedule or tournament conducted under the authority of a national, regional, state or local administrative body that is either CSI owned, sanctioned or sponsored, or that is being played under CSI rules.
Down on the Shot

Having settled completely into a shooting position with a bridge established and pre-shot practice strokes, if any, imminent or in progress. (A.R.D. Down on the Shot)
Ferrule

A piece of protective material at the end of the cue shaft, onto which the cue tip is attached.
Event Venue

1. All areas in which tables specified for play or practice are located; all hallways, lobbies, or other public spaces adjacent to those areas.
2. Other spaces designated by Administrative Authority.
Foot of Table

The end of the table at which the balls are racked (see Diagram 1).
Foot Cushion

The cushion attached to the foot rail.
Foot String

A line along the bed of the table, aligned between the second diamonds of the long rails as counted from the foot of the table (see Diagram 1).
Foot Spot

The point at which the long string and the foot string intersect (see Diagram 1).
Foul

Any violation of the rules of play as defined in the General Rules or specific game rules.
Forgotten Balls

Balls that were not spotted as required when available.
Frozen Ball

A ball that is touching another ball or a cushion. If loose strands or fibers of cloth extend from a cushion and contact a ball, that does not constitute that ball being frozen to the cushion.
Foul Shot or Foul Stroke

A shot or stroke on which a foul occurs.
Head Cushion

The cushion attached to the head rail.
Good Hit

A term used by referees when calling a shot.
Head Spot

The point where the head string and long string intersect (see Diagram 1).
Head of Table

The end of the table from which the opening break and lag is performed (see Diagram 1).
Hit

The action of the cue ball with respect to its contact with object balls.
Head String

A line along the bed of the table, aligned between the second diamonds of the long rails as counted from the head of the table. The area behind the head string does not include the head string (see Diagram 1).
Illegal Object Ball

An object ball other than a legal object ball as defined by specific game rules.
Illegal Break

A break shot that does not meet the break requirements as defined by specific game rules or is in violation of Rule 1-40-a. (A.R.D. Illegal Break)
Impeding Ball

An object ball that prevents the cue ball from traveling a straight line to the first object ball with which contact is attempted. An impeding ball may be a legal or an illegal object ball.
Illegally Pocketed Ball

An object ball is illegally pocketed when:
a. a foul is committed on the shot in which the ball was pocketed;
b. in call shot games, a called ball goes into a pocket other than the called pocket;
c. it is defined as illegally pocketed by specific game rules;
d. in call shot games, a non-obvious shot that is not called.
Jaws

See "Mouth of Pocket"
Inning

A turn at the table by a player.
Jump-Break Cue

A cue used primarily for, and usually designed for, both jump and break shots, usually having a portion of the butt designed for removal while jumping.
Jump Cue

A cue used primarily for, and usually designed for, jump shots.
Jumped Ball

A ball that:
a. comes to rest other than on the bed of the table or in a pocket;
b. contacts any object that is not part of the table (chalk, light fixture, player, floor, etc.);
A ball is not a jumped ball if it leaves the bed of the table and returns there without contacting anything that is not part of the table.
Jump Shot

Intentionally causing the cue ball, because of a downward stroke, to rebound off the bed of the table in order to jump the cue ball over an impeding ball.
Kiss Shot

A shot in which the called ball glances off another object ball before being pocketed. (A.R.D. Kiss Shot)
Kick Shot

A shot in which the cue ball, before contacting the called ball, contacts one or more cushions attached to a rail not adjacent to the called pocket. Incidental contact with a cushion attached to a rail adjacent to a called pocket does not constitute a kick shot. (A.R.D. Kick Shot)
Lag for Break

A procedure to determine which player breaks Where as, each player strikes a ball from the kitchen driving it to the foot rail and back up towards the top rail without touching any side rails. The ball ending up closest to the head rail without passing it wins the lag.
Kitchen

The area of the table between the head string and the head cushion. Also referred to as the area “behind the line” or "behind the head string". The kitchen does not include the head string (see Diagram 1).
Legal Object Ball

An object ball with which first contact by the cue ball is required or legal under specific game rules.
Legal Break

A break shot which meets the requirements of specific game rules. (A.R.D. Legal Break)
Legal Stroke

Forward motion of the cue resulting in the cue tip striking the cue ball for only the momentary time customarily associated with a normal shot. "Forward" means relative to the cue itself, along the long axis of the cue and away from the butt, and has no relevance to any part of the table or any relationship to the player or any part of their body (see Diagram 2. Also see Rule 1-18 and Diagram 4).
Legal Shot

A shot that does not result in a foul.
Long Rack Game

A game that uses a complete set of fifteen object balls.
Legally Pocketed

When an object ball is pocketed on a legal shot and in accordance with specific game rules.
Massé Shot

1. A shot in which extreme spin is applied to the cue ball by elevating the butt of the cue.
2. A shot in which any attempt is made to curve the cue ball around an impeding object ball, regardless of the degree of elevation of the cue or amount of curve.
Long String

A line along the bed of the table, aligned between the center diamond of the head rail and the center diamond of the foot rail (see Diagram 1).
Miscue

A stroke that unintentionally results in faulty cue tip contact with the cue ball (such as the cue tip sliding off the cue ball), often accompanied by a sharp sound not usually associated with a normal stroke.
Mechanical Bridge

A grooved device, usually mounted on a handle, which provides support for the shaft of the cue.
Not Obvious (see "Obvious shot")
Mouth of Pocket

The area of the bed of the table between the pocket and a line between the noses of the cushions near the pocket where they change direction (see Diagram 1). Also referred to as the "jaws".
Obvious Shot (A.R.D. Obvious Shot)

A shot in which the non-shooting player has no doubt as to, or does not question, the ball and the pocket. A shot in which the cue ball has a clear path to the object ball and the object ball has a clear path to the pocket. The following types of shots are exceptions and are defined as being "not obvious":
a. bank shots;
b. kick shots
c. combination shots;
d. shots that include caroms, kisses or cushion contacts that are not incidental;
e. any shot judged as not obvious by the referee.
Object Ball

A ball other than the cue ball.
On the Hill

Needing only one more game to win the match.
On a Foul

When a player fouls, they are said to be "on" a foul until they execute a legal shot. If a player has successive fouls, they are said to be on the number of successive fouls they have.
Playing Cue

The cue used for most shots (as opposed to a break cue or a jump cue).
Open Table

In 8-Ball: when groups have not been established.
Position of Ball

When a ball is resting on the bed of the table, its position is determined by its base. (see Diagram 7).
Pocketed Ball

A ball that drops off the bed of the table into a pocket and remains there. A ball that rebounds from a pocket back onto the table bed is not a pocketed ball. (A.R.D. Pocketed Ball)
Push-out

In 9-Ball and 10-Ball: a shot, declared in advance and immediately following a legal break, in which Rule 1-19 does not apply.
Provided Equipment

Equipment other than that which the player brings to a match, borrows, or purchases from other players, spectators or vendors during a match.
Rack

1. A device used for gathering the balls into the formation required at the beginning of the game or rack. Also referred to as a “triangle”.
2. The formation of the object balls at the beginning of the game.
Push Shot

A shot in which the cue tip maintains contact with the cue ball longer than the momentary contact allowed for a legal stroke. (A.R.D. Push Shot)
Referee Presiding

When a referee stays at the table for the duration of a match or other extended period.
Rail

The top surfaces of the table, not covered by cloth, from which the cushions protrude. There are four rails on a pool table: the head rail, the foot rail, and two side rails. (see Diagram 1).
Restoration

When a disturbed ball is returned to its original position.
Regulations

Procedures established by the Administrative Authority that usually do not directly affect the play of the game on the table, and are primarily administrative in nature. Examples include dress codes, eligibility, breaking order, bracket procedures, team coaching procedures, etc.
Sanctioned Event

Any event or tournament play that is officially recognized by the governing body of that particulal organization.
Safety

A legal shot that, depending on specific game rules, may end a player's inning. Also referred to as "Safe", or “Just a shot”. (A.R.D. Safety).
Shaft

The end of the cue to which the cue tip is attached.
Scratch

1. When the cue ball is pocketed on a shot.
2. When the cue ball touches any pocketed ball or obstruction in a pocket, regardless of whether the cue ball remains pocketed. (A.R.D. Scratch)
Shot

All events related to the motion of the balls from the time the cue tip contacts the cue ball until all of the balls have come to rest.
Short Rack Game

A game that uses a rack of less than fifteen object balls.
Simultaneous Hit

1. When the cue ball first strikes more than one object ball at the same time.
2. When it cannot be determined which object ball the cue ball struck first.
Shot Clock

A timing device used to measure the time limit a player has to take a shot. The device must have the functions of a stopwatch including start, stop, and reset. If the device has audio functions, they must be disabled.
Successive Fouls

Fouls committed on consecutive shots by the same player (also referred to as “consecutive fouls”).
Stroke

The motion of the cue from the time it begins its forward motion, through the time the cue tip strikes the cue ball, and any further follow-through motion of the cue.
Triangle

See "Rack".
Table in Position

The position of the balls on the table as they lie.
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