At a tournament yesterday DD hit a deep shot to center that hit the ground just short of the 210ft fence. DD had an easy double, but got greedy and tried to take 3. The ball from the outfield beats arrives at 3rd way before she does and the third baseman reaches out to tag DD as she approaches the base, but DD stops about a yard short of the base and back pedals two steps. The third baseman misses the tag by about two feet, but the field ump, who is standing between the 3rd base bag and the dugout looking right down the baseline to 2nd calls DD out. Our coaches, players and parents go nuts because the tag wasn't even close. DD had retreated towards 2nd, but when the 3rd baseman ran the ball to the circle she went to 3rd; she knows she wasn't tagged and everyone is telling her not to leave the field. The explanation our coaches get from the field ump is DD is out because she back pedaled. Is that really a rule?