As a general rule, the pivot foot must be on the same side as the arm used to throw the pitch and the pitcher's feet are placed at a distance that is not larger than the width of the shoulders.
The pivot foot must be on the same side as the arm. This is as a general rule. This arm is used to throw the pitch. The pitcher's feet are placed at a distance. This was as a general rule. This distance is not larger than the width of the shoulders.