The ceremonial first pitch is a longstanding ritual of baseball in which a guest of honor throws a ball to mark the end of pregame festivities and the start of the game. Originally, the guest threw a ball from their seat in the grandstand to the pitcher or catcher of the home team, but the ritual changed after United States President Ronald Reagan threw the first pitch on the field at an unscheduled appearance at a 1988 Baltimore Orioles game. Now, the guest stands on or in front of the pitcher's mound and throws towards home plate. The recipient of the pitch is usually a player from the home team.
The ceremonial thrower may be a notable person (dignitary, celebrity, former player, etc.) who is in attendance, an executive from a company that sponsors the team (especially when that company has sponsored that night's promotional giveaway), or a person who won the first pitch opportunity as a contest prize. Often, especially in the minor leagues, multiple first pitches are made.