Not true. Baserunners advance at their own risk and the ball is only considered caught if it is actually caught. what? If it isn't caught you can't force the batter at any base, thus you can't turn two off of it. The runners aren't forced to run, but you can still get a double (or triple) play off of it if you let it drop and the runners try to tag up. If the ball hits the ground, the runners still don't have to advance. They can, but the don't have to. ' That's why I said "the runners aren't forced to run." When I played softball I used to intentionally drop the ball on an IF fly rule to see if the runners would get confused and think they had to run.