Official Rules(view all)

8.03 Preparatory Pitches

When a pitcher takes a position at the beginning of each inning, that pitcher shall be permitted to pitch not to exceed eight preparatory pitches to the catcher, or other teammate acting in the capacity of catcher, during which play shall be suspended. Such preparatory pitches shall not consume more than one minute of time. If a sudden emergency causes a pitcher to be summoned into the game without any opportunity to warm up, the Umpire-in-Chief shall allow the pitcher as many pitches as the umpire deems necessary.