Baseball Ceremonial Pitches
While the grounds crew is getting the field ready for the game, the players of each team arrive to their respective dugouts. In professional games, there is usually a ceremonial first pitch. The ceremonial first pitch is thrown by a guest of honor, sometimes a celebrity or the winner of a contest. They throw a pitch from the pitcher's mound to a player from the home team who acts as a catcher.
Often times, the ceremonial first pitch is thrown by presidents, celebrities, goodsamaritans in the community.