For a USBC certified event, the ball must meet a set of criteria, which is usually up to a 3 ounce difference in top weight and 1 ounce for thumb, left and right side weight. Drilling holes for fingers and thumbs usually compensates for this when drilled in the standard location. Usually a ball without holes will not meet this requirement and need to have either finger holes or a counterweight hole drilled to bring the ball back to legal specs.
The USBC (United States Bowling Congress) allows up to six holes to be legally drilled into a bowling ball: one for each finger being used to grip the ball, plus one additional one (colloquially known as the 'weight hole') to change the ball's center of gravity -- which affects how soon and by how much the ball will start to hook.
The vast majority of bowlers, however, grip the ball with only two or three fingers; a very few might use a fourth (usually the little finger, or pinky). Therefore, finding a ball legally drilled with five or six holes is extremely rare.
3. two fingers, one thumb *unless ball has a balance, or weight hole to make the ball USBC legal.
obviously a bowling ball without holes, how could something with less material in it weigh more
There Are 3 holes in a ten-pin bowling ball.
To hold the ball!
3
There is usually 3 holes in a Ten Pin Bowling Ball. 1 large hole for your thumb and 2 smaller holes for your middle and ring finger. Some bowlers may have different numbers of holes based on their bowling style.
3 holes in a bowling ball
3
3
The difficulty of picking up a bowling ball is the weight of the ball and holes for the hand grip relative to the person picking up the ball and their strength and mobility.
The heaviest legal bowling ball weighs 16 pounds.
3 Holes in a Bowling Ball