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How to Throw a Curveball With a Tennis Ball

    Locate a tennis ball to use. The newer the ball, the easier it will be to throw a curveball. Tennis balls that are worn down have deep seams and are less likely to break.

    Identify the spot on the tennis ball that makes a U-shape. Rotate the ball so that the U-shape appears upside down.

    Place your index finger and your middle finger together so that there is no gap between them.

    Place the fingers from Step 3 on the right seam of the upside-down U-shape.

    Throw the curveball by rotating your wrist forward as you release the ball. Tennis balls are lighter than a normal baseball, so you need a very exaggerated the wrist rotation, harder than you would when throwing a regular baseball.

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About the Author

Anthony King is a freelance writer and amateur filmmaker. His work has appeared in various online publications. He is currently working toward graduating with a B.A. in English-writing.

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