RulesMLB
5.07 (a) (2) The Set Position
There are two legal pitching positions, the Windup Position and the Set Position, and either position may be used at any time. Pitchers shall take signs from the catcher while in contact with the pitcher’s plate. Rule 5.07(a) Comment (Rule 8.01 Comment): Pitchers may disengage the rubber after taking their signs but may not step…
RulesMLB
2.04 The Pitcher’s Plate
The pitcher’s plate shall be a rectangular slab of whitened rubber, 24 inches by 6 inches. It shall be set in the ground as shown in Diagrams 1 and 2, so that the distance between the pitcher’s plate and home base (the rear point of home plate) shall be 60 feet, 6 inches.
