The umpire must be able to officiate the game to the satisfaction of the opposing team. In addition, teams must provide 1st and 3rd base coaches who will officiate plays at 1st, 2nd, and 3rd bases. The umpire may over-rule a base coach's call. The umpire officiates plays at the plate. A player may compete with only one team per sport.
Violation can result in suspension of the player and forfeiture of the game in question.
See IM General Rules for details. B. No leading off until the ball crosses home plate. No advancing on passed balls or wild pitches. The ball is thrown out of play and the umpire then awards all baserunners the appropriate base to which they are entitled. The ball has been returned to the pitcher on the mound.