Baserunning

Running from second to third is normally fine. If the runner does something unusual to put themselves in the way, that can be interference. Contact is not necessary, intent is necessary either. 

Stutter stepping is an abnormal running pattern with the intent to interfere with the fielder's view. Runner out.

Has to be a fluid motion. You cannot "dance around" or stutter your run to try and distract the fielder.

Thanks guys and that's what I thought it was.  Like I said I didn't see what she did but my guess is she did something out of the ordinary which lead to the call.

What's funny is in 20 years of coaching baseball I've seen maybe two calls like this.  In this game there were three calls - two on our team and one on the other.  Funny how baseball and softball are like this.

Smaller field, players in closer proximity...

I think if I ever set foot on a softball field, I would feel like I'm in a mall.

I have definitely had more obstruction/interference calls in the middle of the basepaths on regular plays (ie not rundowns, not at a base, etc) in softball than in baseball.  The softball game is almost too fast for the field size IMO.  However, I cannot see stretching out bases too much or it will go too much to the defense.