running through first base

RulesMLB Umpire Manual

BATTER-RUNNER PASSING FIRST BASE

Rule 5.09(b)(4): The exception to Official Baseball Rule 5.09(b)(4) prohibits the batter-runner from being tagged out for overrunning or oversliding first base if he immediately returns to the base. However, once the batter-runner returns to first base safely after overrunning/oversliding the base, he is no longer protected from being tagged out if he subsequently loses…

Don't strike out!

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