When a pitcher throws out a base runner

Answer 1

, it means the pitcher successfully makes a throw to a fielder who then applies a tag or makes a play to get the base runner out. This can happen on a stolen base attempt, a pickoff attempt, or a throw to catch a runner off base. Getting a base runner out can be a crucial moment in a game, as it can prevent the opposing team from scoring runs and potentially change the momentum of the game.