pitchers mound

RulesMLB

2.01 Layout of the Field

The field shall be laid out according to the instructions below, supplemented by the diagrams in Appendices 1, 2, and 3. (1.04) The infield shall be a 90-foot square. The outfield shall be the area between two foul lines formed by extending two sides of the square, as in diagram in Appendix 1 (page 153)….