My DD’s team does not use wristbands thankfully. They use a 3 digit system and each inning they switch the order in which the pitch is being called in the sequence. For example, in one inning the pitch will be the third number in the sequence so a call of “435” will be a changeup. Next inning the pitch may be the second number in the sequence so “435” will be a curve. The coach tells the pitcher and catcher what number in the sequence they are using before each inning. My DD likes to work fast so this is good for her preferred pace of the game.
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