As a fielder, sometimes you'll make a mistake. It happens very rarely at the professional level, but humans aren't perfect. Errors do happen and when they do, they can affect the outcome of a game. There are two types of throwing errors we will cover:
While wild pitches are not technically considered overthrows, they occur when a pitcher throws a baseball that is so far from the strike zone that the catcher is unable to catch it. In this case, runners may advance.
If the pitch was the batter's third strike, the batter may also advance to first base. However, it is not considered a wild pitch if no runner advanced bases. If the bases are empty and the batter had less than two strikes, it is not considered a wild pitch even if the catcher was unable to catch it.