runner thought he was out

[UmpJM]

yankeesfan,

JEA suggests that in your sitch, with the runner at (or approaching) 2B, he would not be called out for abandonment until he crossed the foul line in his return to the dugout. He would have the ability to "reassert his status as a runner" up until that point.

As SD Steve says, were he to do so, his "baseline" is a direct line from wherever he happens to be to his advance or return base, with a 3' tolerance either side, should the defense attempt to tag him out.

JM

P.S. And yes, I'm sure.