An umpire's interference call yesterday during a high school softball game has me a bit frustrated. In my 14 years of coaching the game, I have never experienced this: My team had one out, base runners on 1B and 2B. A dropped third strike occurred, the batter took off for 1st. The catcher made an overthrow to first and my base runner on second scored & the runner on 1B advanced to 3B. The umpire called interference & along with calling-out the batter who struck out (which obviously was the correct call), he called-out my base runner who was originally on 2B. Again, right call if this is a true interference call. The rationale the umpire gave me was "since first base was occupied and only one out, the batter should not have attempted to run to 1B. By doing so, her action 'confused' the catcher into throwing the ball to 1B." Let me paraphrase ... because my batter confused the catcher into throwing ... really? Shouldn't the catcher know the rule? Am I missing something? We have another game tonight. Need to get this right. Spent last night practically memorizing the rule book. Can't find this anywhere. Any help will be greatly appreciated.