It doesn't have to be an action by the batter. This had to be ball four before it became a passed ball, so any advance or run would be nullified.
6.07(b)When an improper batter becomes a runner or is put out, and the defensive team appeals to the umpire before the first pitch to the next batter of either team, or before any play or attempted play, the umpire shall (1) declare the proper batter out; and (2) nullify any advance or score made because of a ball batted by the improper batter or because of the improper batter’s advance to first base on a hit, an error, a base on balls, a hit batter or otherwise.
NOTE: If a runner advances, while the improper batter is at bat, on a stolen base, illegal pitch, balk, wild pitch or passed ball, such advance is legal.
Tim.
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