How to Throw a basic curveball
GiantsMan5 demonstrates how to throw a basic curve-ball. First, don't listen to people who say there's only one way to throw a pitch. Position your fingers on the four seams of the baseball. Unlike a fastball, which you throw straight, to throw a curve-ball, move your wrist in and let the baseball drop during the pitch. By throwing an effective curve-ball, you give it top spin so it drops after you release the ball. Use different grips to control the speed of the curve-ball. You can also throw a two seam curve ball using the same techniques to achieve a similar effect.