Understanding and solving the ‘roll-out’ phenomenon
‘Roll-out’ is a unique phenomenon that occurs when the rotational force of a bowling ball suddenly dissipates and the ball fails to maintain its direction. Many bowlers are curious about this issue. Thus, we will take a closer look at the causes and solutions for roll-out.
‘Roll-out’ happens when a bowling ball loses energy while it is spinning, either during a hook or hooking action, and as a result, the ball cannot maintain its direction leading to problems with pin action. This is akin to the action ‘dying’, meaning instead of a lively ball hitting the pins, it feels more like a dead ball hitting them. Hence, understanding this phenomenon and its causes is critical to avoiding roll-out and achieving high scores.
Roll-out occurs due to a failure in maintaining the spin direction. Spin direction is determined by the ‘turn’ action of the wrist and fingers; if this motion is not completed, the ball’s spin will die. The ‘turn’ is the motion that occurs when the hand gripping the ball and the thumb move from 6 o’clock towards 3 or 4 o’clock. Failing to complete the turn to 3 or 4 o’clock can result in roll-out.
When roll-out occurs, the ball cannot properly grab onto the lane surface, resulting in a vague direction. While incomplete turns can cause this, it can also happen due to the condition of the ball or the lane. For example, using a high-performance ball on a lane lacking oil or a ball with a worn coverstock can increase friction, causing the ball to lose energy at the back end.
Confidently executing the ‘turn’ helps prevent roll-out. However, even a solid turn can result in roll-out. One simple yet effective technique to complete your turn is by lifting the ball sideways. Gripping your fist with the palm facing left and the pinky fingers of both hands facing each other before releasing the ball can accomplish this.
Sometimes, bowlers intentionally stop their turn mid-way to induce roll-out, especially on dry lanes where there’s less oil to pull the ball into a roll-out, aiming for precise pocketing.
Moreover, the turn and angle of the ball can vary depending on the center of gravity of the palm. By placing the ball on your palm and bowling with it, you can get a feel for how to effectively handle the ball. It’s important to be cautious and avoid straining your fingers when using the fingertip grip. The sensation of the ball sticking to your palm is something many experts discuss, and it can improve your ability to throw the ball with a high spin.