Batter goes to 1B in error on

[UmpireErnie]

Originally Posted by youngump

I'm not sure where the umpire error fits in here. But as to BOO, if the batter takes ball 4, she can't avoid being called out for BOO by refusing to go to first. If she fails to go to first, she'll be out for that alone. If she does go to first, she's liable to be called out.

The umpire error was me not seeing that the batter had gone down to 1B on an IP call. But it was only ball two. I should have seen runner on 1B and fixed it before the pitcher threw the next two pitches?