Ten-pin bowling Effectively, there are three kinds of marks given in a score; a strike (all ten down in the first ball), a spare (all ten down by the second ball), and an open (one or more pins still standing after the second ball). A strike earns ten pins plus the pins for the next two balls thrown. (For example, if a player got a strike then followed with a 7 and 2 in the next frame, the value for the strike frame would be 10+7+2, or 19; if the player got a strike followed by another strike the next frame and
Ten-pin bowling a "shovel-pitch" from the side. A conventional bowling ball is designed to roll about a generally horizontal axis, and often the core is asymmetric so that the ball can hook naturally. However, in parts of Asia, the "spinner", "helicopter" or "UFO" release is more common. A ball spinning about a generally vertical axis of rotation spins like a top down the lane, and slides straighter, regardless of oil pattern. The ball takes an unconventional path along the front pins ("deflection"), creating domino effect pin action. The spin is generated by rotating the hand counter clockwise (right-handed bowlers) until the hand