I had the almost the same thing happen in a 10U CYO game and if anyone knows anything about CYO coaches, you know that one team was beyond ticked off. At least it wasn't to end the game, but it was for a strike three. Kid is up, maybe the fourth inning, they've got a good rally going, bases loaded, two outs, 2-2 count. Kid thinks the ball is going over his head, so he ducks his head over the strike zone. Ball drops right to his head, hits him on the helmet. He starts running down to first. The PU (I was BU) calls "Ball hit him in the strike zone. That's a strike. Strike three. Batter is out." Parents were all confused. They didn't know that was an actual rule and the coach was livid. We let him have his say, but we weren't changing that call. He eventually cooled off and even told us "Good game" afterwards. He told us he looked up the rule after it happened on the bench and told us we were right. It's nice to hear that from a coach when a call like that happens.