re: Looking for a softball ruling:

This is where the ole umpire judgement comes into play. Very hard call but the umpire has to determine if the runner blocked the fielders from making play, or did fielders block runner from advancing to base...from your story I would of ruled runner safe due to obstruction. Maybe they saw it as she was out of running lane or purposely got in way of fielders. Tough call either way that you dont see very often.