Obstruction but with a twist.

[CelticNHBlue]

Agree with Mike, once you call Time, it's over. My assumption is that you called time because players were potentially injured and required immediate attention, in your judgement. If so, all runners are awarded bases you judge they would have attained without your killing the play. In this case, I am going to make sure, once the 'medical' treatment is complete that the coach and runners are aware that they have been awarded specific bases (hint, hint) and not just let them leave. There was, after all, a more important issue at hand (particularly at this age group), as you have judged by calling Time.

As to ruling obstruction, the only difference I can see in NCAA is the about to receive clause that could negate obstruction if the timing of the play was appropriate. Can't speak to ISF (yet).