The judge of a baseball game is called an umpire.
The umpire. What he says, goes.
Umpire? They enforce the rules of the game.
The home plate umpire with occasional help from the third base umpire calls balls and strikes in the game of baseball.
No, not in a High School, College, or a MLB game. In little league 1 umpire is often used.
Probably go find a baseball game.