Ten-pin Bowling - Play

Play

A game of ten-pin bowling is divided into ten rounds (called "frames"). In a frame, each player is given two opportunities to knock down the skittle targets (called "pins"). The player rolls the first ball at the pins. If the first ball knocks down all ten pins, it is called a "strike" and the frame is completed. When pins are left standing after the first ball, those that are knocked down are counted and then removed. Then the player rolls a second ball and if all the remaining pins are knocked down, it is called a "spare". There are bonuses for removing all the pins. If there is more than one player scheduled on a lane, play passes to the next player until all players have completed the frame. Then play continues with the next frame. The final or tenth frame of a game may involve three balls. See Scoring below.

The ten pins are usually automatically set by machine into four rows which form an equilateral triangle where there are four pins on a side (Pythagorean Tetractys). There are four pins in the back row, then three, then two, and finally one in the front at the center of the lane. The pins are numbered one through ten, starting with one in front, and ending with ten in the back to the right. This serves to ease communication; one could say that the 4 and 7 pins were left standing. Neighboring pins are set up 12 inches (30 cm) apart, measured from center to center. Due to the spacing of the pins and the size of the ball (about 8.6 inches (22 cm) in diameter), it is impossible for the ball to contact every pin. Therefore, a tactical shot is required, which would result in a chain reaction of pin hitting pin. In an ideal shot, for a right-hander, the ball will contact only the 1, 3, 5 and 9 pins; for a left-hander, the 1, 2, 5 and 8 pins. Brooklyn is when a bowler obtains a strike by throwing the ball into the opposite pocket, known as the Brooklyn pocket. For example, a Brooklyn would occur when a right-handed thrower obtains a strike by throwing a ball into the 1-2 pocket, and similarly a strike occurs for a left-handed bowler throwing a ball into the 1-3 pocket.

In order to count, a pin must be knocked over entirely. If the pin is wobbling as the automatic pin machine picks it up (or the machine itself knocks over the pin while it is wobbling), it is still considered standing and is not scored. Also, if a pin is moved, it does not change its designation. For example, if the 10 pin were still standing and the 7 pin slid into the 8 pin position, converting this spare would still be considered and given a 7-10 split award (if performed in sanctioned play).