A first trial ball of a baseball pitcher pitching pitch as a straight pitch is faster than the existing straight pitch. The ball is coming at the height of the knee of a hitter. Therefore, the ball is very threatening to the hitters. Both solid ball 1 and solid ball 2 are coming higher than the existing straight pitch and thus they are threatening to the hitters. They have less ball rotations since the pitchers throw them without holding a seam part on the ball, causing the hitter to feel the ball light and not to want to hit the ball. Change ball J is thrown by touching one side of the seam part, while making a ball track similar to Japanese poke ball.;COPYRIGHT KIPO 2016
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