We've already learned that a baseball game lasts nine (9+) or more innings and teams have nine (9) fielders in the field. We also learned that baseball teams have both a 25-man roster and 40-man roster. it makes sense that these same nine (9) players don't play the entire game. They are substituted out.
A substitution is the act of replacing one or more (1+) players of a team on the field with players from the dugout located beyond the foul lines. Of course, these players have to be on the team roster.
The following are possible substitutions teams can make:
When Does A Substitution Happen In Baseball?
- the pitcher has the baseball on the mound
- an interference is called
- a batter is hit by a pitch
- a foul ball is not caught
- a balk occurs
How Often Can A Baseball Team Make Substitutions?
Teams can make unlimited substitutions throughout the course of a baseball game. Once a player is substituted he must be replaced in the batting order. In addition, the player cannot return to the game.
Pinch runners are substitute baserunners, who replace runners who are on-base. Once a pinch runner is used, the player they replace must be taken out of the game. We'll learn more about pinch runners in future chapters.
Pinch hitters are substitute batters, who replace batters who are already on the lineup. Once a pinch hitter is used, the player they replace must be taken out of the game. We'll learn more about pinch hitters in future chapters.
We'll learn more about pitching changes in future chapters.
A rotation is a type of strategy used by managers to maximize pitcher performance. It is a defined schedule that field managers make to determine how much playing time a pitcher should get before they are substituted. It is based on how many pitches are thrown and how the depth chart. We will learn more about rotations in later chapters.