Players in a game - Teams unable to field four rostered players, at any time, for any reason, will forfeit any games scheduled at that time. Substitutions - may be made, however once a player leaves a game, that player may not return to the same game. All pitches must be slow and have an arc on them. No sidearm pitching will be allowed. The batter may ask the pitcher to slow pitches down.
Balks are legal.
The pitcher must have one foot on, and one foot in front of the rubber when the ball is released. Batters may choose not to swing at any pitch. Hit batters will not advance. One-handed batting will not be allowed. The batter will go to first on the command of the pitcher.