How to pick the right bowling ball weight

Start with the 10% rule

The common starting point is about 10% of your body weight, up to the legal maximum of 16 pounds. So a 150-pound person starts around 15, a 120-pound person around 12. It's a guideline, not a law.

But comfort beats the chart

The 10% number is a starting point — your body has the final say. Hold the ball in your stance and let your arm hang. If your wrist, elbow, or shoulder strains, go a pound lighter. A ball that's slightly too light still bowls well; a ball that's too heavy ruins your timing and can hurt you.

Signs your ball is too heavy

• Your arm drops or drags through the swing.
• You can't control where it goes.
• Your wrist bends back under the weight.
• You're sore the next day in a bad way.

Any of these? Drop down a pound and see how it feels.

Kids and lighter bowlers

For children, prioritize control and safety far over the 10% figure — a ball they can actually swing is the right ball. The same goes for anyone with wrist, elbow, or shoulder issues: lighter and controllable always wins.

The fitted-ball difference

One thing the weight conversation misses: a properly fitted ball feels lighter than a house ball of the same weight, because it sits on your hand correctly instead of being squeezed. That's why many bowlers can comfortably throw a heavier fitted ball than house ball. More on that in choosing your first ball.