| Action - |
Bowling for money
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| Adjustments - |
Changes a bowler will make in his/her approach and lane movements, throughout the course of a game, in order to continue to hit the pocket.
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| Alley - |
Slang term for a lane or bowling center.
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| All events - |
Total combined pins bowled in singles, doubles, and team events of a tournament, which is normally a nine game total.
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| Anchor - |
Last bowler in the lineup of a team, who is normally one of the better bowlers on the team.
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| Approach - |
Section of the lane behind the foul line, which according to USBC rules, must be at least 15' long.
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| Arrows - |
Marks implanted in the lane, which begin approximately fifteen feet past the foul line, that serve as reference points.
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| Axis Tilt - |
This is a measure of the angle of the initial spin axis to a horizontal plane. A full roller or high track release would have little or no axis tilt.
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| Axis weight - |
A drilling that positions the pin on the bowler's axis and produces a small amount of track flare, which is designed to get the ball into an early roll with a controllable breakpoint.
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| Baby split - |
Leaving the 3 - 10 or 2 - 7 pins.
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| Back up or reverse ball - |
A bowler's release, which hooks towards the hand which released it. For example, the ball hooks right for a right-handed bowler.
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| Backend - |
This is the area of the lane closest to the pin deck, which is approximately the last 20-25' of the lane. This area of the lane is not oiled, although oil can move down the lane into this area.
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| Baker system - |
Assigns different bowlers to certain frames, predominately utilized by five-person teams in competition. Specifically, it allocates the first and sixth frames to the first bowler, and so on, for each player on the team.
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| Balance Hole(weight hole) - |
A hole added to the ball, which is used to bring the ball into USBC specifications for static balance, or fine tune the reaction of the ball. Maximum size for USBC is 1-1/4".
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| Ball track - |
The circular ring formed by the ball coming into contact with the lane.
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| Big Four - |
Leaving the 4, 6, 7, 10 pins standing.
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| Blind - |
Approved score for a bowler not in attendance, which is usually lower than the bowler's average score, and pins are normally deducted as a penalty.
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| Blocked - |
A lane which has been intentionally given favorable conditions in order to increase scoring by making it easier to hit the pocket.
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| Break point - |
The location of the ball path closest to the gutter, which is the point at which the ball begins to move back towards the pocket.
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| Bridge - |
The space between the finger holes on a bowling ball.
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| Brooklyn (Crossover) - |
A shot that results in a strike by hitting the opposite side of the headpin than normal, or by a right-handed bowler hitting the left side of the headpin or the 1-2 pocket.
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| Bucket - |
Where the 2, 4, 5, 8 or 3, 5, 6, 9 pins are left standing after the first ball.
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| CATS - |
Stands for Computer AIded Tracking System. It is a system for measuring the ball path on the lane.
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| Center of gravity (CG) - |
A point that denotes the heaviest spot on the ball. 900 Global balls with symmetric cores are marked by a pin prick with the 900 Global logo engraved over it, and asmmetric cores are marked by a pin prick and then a circle inside a circle engraved on the ball.
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| Clean game - |
A game which exclusively contains spares and strikes.
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| Convert - |
Removing remaining pins to get a spare in that particular frame.
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| Count - |
The number of pins removed on the first hit of each frame.
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| Core (weight block) - |
The center weight within a bowling ball, which has many purposes including weight manipulation.
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| Dead Wood - |
Fallen pins which remain on the lane or in the gutter. They must be removed before the next delivery.
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| Differential RG - |
This is the difference between the minimum and maximum RG axis in a ball. This property determines track flare potential. The maximum allowable is 0.060.
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| Ditch (Playing the Ditch) - |
A type of shot where the bowler plays the extreme outside portion of the lane closest to the gutter.
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| Dots - |
Markers included in the lane, similar to arrows, placed directly past the foul line, which are sometimes used as reference points for contact.
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| Double - |
Two strikes in a row.
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| Double Tap - |
The 7, 10 split, despite a seemingly good pocket hit.
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| Double Wood - |
Leaving two pins, one directly in front of the other. This usually occurs by leaving the 2, 8 or 3, 9 pins.
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| Durometer - |
A gage used in measuring the hardness of a ball. USBC requires a minimum hardness of 72, while the PBA requires a minimum hardness of 75.
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| Dutch 200 - |
A score of 200, achieved by alternation of strikes and spares.
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| Fast Eight - |
The 4, 7 and 6, 10 splits.
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| Foul - |
The act of contacting or crossing the foul line with any part of the body during delivery.
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| Foul Line - |
A line separating the approach from the rest of the lane, which is usually a black line.
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| Foundation - |
A strike in the ninth frame.
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| Frame - |
The ten divisions within a game. The first nine allow two deliveries, unless a strike is rolled, while the tenth allows for a maximum of three deliveries.
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| Full Roller - |
A ball which is able to roll its complete circumference, creating a track which lines up between the thumb and fingers.
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| Greek Church - |
The 4, 6, 7, 8, 10 and 4, 6, 7, 9, 10 splits.
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| Gutter - |
The lowered gullies on either side of the lane, which force the ball into the pit, thereby not allowing them to contact with the pins.
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| Handicap - |
An attempt to make the competition fair by giving pins based on either individual or team averages.
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| Headpin - |
The pin in front, or the first pin.
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| Heads - |
The front part of the lane, also called the maple area of the lane, because that is what they are normally made of.
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| Hold - |
An area of the lane which prevents the ball from hooking high on the headpin, which is created by adding more oil to the center of the lane.
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| IBPSIA - |
International Bowling Pro Shop and Instructors Association.
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| Inside - |
The portion of the lane along the third, fourth, and fifth arrows, utlized by bowlers who roll towards the center of the lane.
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| Kegler - |
The German term for a bowler. Bowling was created in Germany.
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| Kickback - |
The dividers between lanes in the pit, which often cause previously contacted pins to knock down other pins by providing a backboard to repel them.
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| Lane - |
60' from the foul line to the center of the headpin + or - 1/2". The approach portion must be at least 15', according to USBC rules and the total lane must be 62' 10 3/16", measured from the lane side of the foul line to the rear edge of the pin deck.
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| Leverage Drilling - |
This drilling produces the greatest amount of track flare. The Pin and CG are located 3-3/8" from the bowlers PAP.
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| Lift - |
A release where the bowler imparts upward motion on the ball as the thumb exits the ball. The weight of the ball rests on the pads of the fingers, allowing the bowler to impart rotation to the ball.
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| Light - |
Missing full contact with the target pocket. For right-handed bowlers, contact is to the far right.
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| Lofting - |
Releasing the ball so that it hits far past the foul line, as if one had thrown it rather than rolled it.
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| Mark - |
Can mean either a strike or spare or the target which the bowler is aiming for.
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| Messenger - |
A pin that comes back across the pin deck to knock down other pins.
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| Mid Line - |
Terminology used on drill sheets: It is the horizontal line that extends from the center of grip at 90 degrees, to the grip centerline.
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| Mid Plane - |
Terminology used on drill sheets: It is also called the vertical axis line. It is the vertical line that runs vertically through the PAP.
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| Moment of Inertia - |
By definition, this is the resistance to rotating motion. Mathematically, it is equal to the mass times the distance squared.
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| Oil - |
The lubrication of the lane, which attempts to safeguard it from damage, and usually consists of a mineral based oil.
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| Oily - |
Condition of the lane which is due to heavy amounts of oil, and makes it difficult to hook the ball.
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| Open - |
A frame that does not include a strike or spare.
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| Over - |
The difference between the bowler's average score and the average 200 par score.
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| Perfect Game - |
A three hundred score from twelve uninterrupted strikes.
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| Pin - |
One of ten targets in a particular position at the end of the lane. They must weigh between three pounds six ounces and three pounds ten ounces.
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| Pin Deck - |
The area on the lane where the pins are arranged.
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| Pin in - |
This is a ball that has the pin and center of gravity within 1 inch of each other.
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| Pin out - |
This is a ball that has the pin and CG greater then 2" from each other.
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| Plastic Balls - |
Bowling balls made of polyester.
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| Pocket - |
The desired position of contact. For right-handed bowlers, it is situated between the first and third pins.
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| Positive Axis Point - |
This is the point at which the ball initially wants to rotate, when the bowler releases it.
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| Radius of Gyration (RG) - |
This is a measurement of the effective weight distribution in a ball, as it relates to the moment of inertia. USBC limits are 2.430 - 2.800
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| Reactive Resin Balls - |
Balls made of urethane developed in the early 1990's, which are capable of creating greater entry angles easier than urethane balls made before that time.
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| Resurface (ball) - |
Ball maintance performed by pro shops in order to remove the ball track form the ball and restore the ball surface to its original condition.
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| Reverse Block - |
A lane condition in which more oil is applied to the outside boards than to the inside. This condition is usually applied to keep the scores down and create a premium on shot making.
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| Revolutions (Revs) - |
Number of complete 360 degree turns it takes a bowling ball to complete, in order to get from release to point of contact .
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| Roll Out - |
A term used to describe a ball that has made its turn at the breakpoint and has begun to go in a straight line. At this point, the ball looks as if it has stopped hooking.
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| Scratch - |
Term used to describe a bowler who receives no handicap.
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| Spare - |
Knocking down the remaining pins left from the first delivery, with the second attempt. The score for the frame is 10 plus the count from the next delivery.
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| Strike - |
Knocking down all ten pins with the first delivery, for which the score counts 10 plus the count of the next two deliveries.
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| Strike Out - |
A string of strikes which begins in any frame and continues until the end of the game.
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| Surlyn - |
The common material used to cover bowling pins.
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| Turkey - |
Three successive strikes.
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| Turn - |
The hand movement which allows the ball to spin around the desired axis of rotation.
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| USBC - |
Governing body of bowling in the United States, which was formed January 1, 2005.
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| Urethane - |
A material used in bowling balls that became popular in the early 1980's.
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| Venting - |
Relieving suction of the thumb hole by drilling a small hole next to the thumb hole.
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| Void - |
A pin's internal open space, which controls the pin's center of gravity.
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| Washout - |
The leave after the first ball, where the 1, 2, 4, 7, 10 , 1, 2, 4, 10, or 1 , 2, 10 pins are left standing. This occurs when the ball misses the pocket to the outside, but it is still hooking towards the pocket. This is opposite or inverse for left-handed bowlers, which is 1, 3, 6, 7, 10, 1, 3, 6, 7 or 1, 3, 7. |
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