dodgeball

Dodgeball (or dodge ball) is the name of a traditional game taught in physical education classes in the U.S. and Canada as well as other such parts of the world, usually in elementary school, but is played in middle, high school, college and as a professional sport as well. It is also popular in informal settings and is often played by schoolchildren on a playground or in a gym. There are many variations of the game, but each involve players trying to avoid being hit by a ball that players on the other team are throwing at them.
_Wikipedia