I know everyone has seen when a pitchers starts her arm circle and looses the ball or throw it into the ground. My question is if a pitchers loose the ball on her back swing and the ball goes toward 2nd base and not toward the batter, what is the ruling on this pitch. I know its a ball on the batter but is that because it is an illegal pitch? If there are base runners at the time that this happens do they move up a base because of an illegal pitch or are they advancing at there own risk?