Different Ways to Curve a Bowling Ball

Curving or hooking a ball is an essential skill in bowling that can improve your game. The spinning action of a curve ball causes it to hit more pins with greater force and score more strikes. The right amount of spin will cause the ball to curve toward your target. Balls can be curved in different ways by adjusting the form and force of your release.

  1. Basic Curve

    • Keep the thumb as close to the bottom of the ball as possible, with your wrist firm and straight in a "handshake" position. When releasing the ball, the thumb should be removed first while the other fingers turn and lift up the side of the ball similar to the opening of a doorknob. For right-handed bowlers, the fingers should turn counterclockwise. This upward lifting motion of the fingers creates a side rotation that rolls the ball onto the lane rather than sliding onto it.

    The Stroker

    • A stroker-style curve throw focuses on accuracy rather than high speed and force. The slower speed of the ball creates a smaller curve. The bowler's shoulders remain closed, pointing toward the target. The back swing of the arm just before the release is no higher than parallel to the lane. This gentle release produces less curving and revolutions than other hook shots and relies on a smooth delivery to hit the pins.

    The Cranker

    • A cranker throw uses maximum force and speed to maximize the curve and revolutions of the ball. Your shoulders should stretch wide open with a high back arm swing reaching beyond the point parallel to the lane. Your wrist should be cupped to pull the ball upward for extra leverage and force before the release. The ball is released at a higher point than for other shots, for added speed. This elevated speed generates a larger curve than other hook throws.

    The Helicopter

    • The spinner or helicopter throw is used with lightweight balls. The bowler's palm faces downward with the thumb and fingers holding the ball from the top. The wrist is rotated just before the release to give the ball a quick, high-speed spin angled toward the target pins. This creates a powerful helicopter spinning effect as the ball travels down the lane, requiring contact with only a single pin to knock down the entire set.