What is the world's oldest sport that uses a ball?

Answer 1

The Mesoamerican ballgame is commonly presumed to be the oldest sport that used a ball.

Although not a recreational sport, the Mesoamerican ballgame was used for important rituals and players were highly regarded. The game was also involved in the use of human sacrifice where the game's losers were sacrificed to ensure protection against the gods and fertility of the civilization's crops.