The regulation sport that uses the largest ball is basketball.
The sport of bowling.
volleyball
Shot put.
hurling
The regulation sport that uses the largest ball is basketball.
if it wasn't spherical it would not be a ball
You can use the ball as defense in the sport of dodgeball.
jai alai (sport)
The sport of bowling.
Balls can be spherical or not. The (American) football uses a ball that is far from spherical. However, a sphere is a perfect geometrical solid with a uniform radius, and a ball made in that shape is quite suitable for games. It will, for instance, bounce in a predictable way.
Beach
The sport of bowling.
Billiards uses a cue ball.
There is a "double-yellow dot" ball currently used in the sport of squash.
volleyball
cricket