REFERENCE CARDS
Rule 6.03(c)(7)
Players are permitted to use reference cards during games so long as their use does not cause unnecessary delay to the game and there is no attempt made to alter the baseball using the card.
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Rule 6.03(c)(7)
Players are permitted to use reference cards during games so long as their use does not cause unnecessary delay to the game and there is no attempt made to alter the baseball using the card.
