From home to 1st or 3rd, this measurement is taken from the back point (apex) of home plate to the farthest corner of each of 1st or 3rd base along the foul line. Between the bases, the measurement is taken from the outfield side of 1st or 3rd base at the corner by the foul line and extends to the center of 2nd base.

Always 3' to the foul side of the 1st base foul line. It starts exactly halfway down the 1st base line and ends at the back edge of 1st base. It’s marked on the second half of the 1st base line.

Measurement used to ensure the infield is square. May be measured from the back point (apex) of home plate to the center of 2nd base. Or, from the back corner of 1st base to the back corner of 3rd.

From the center of the front edge of the pitching rubber extending toward the outfield grass to the distance recommended.

The distance from the foul edge of the foul line to the line in the coach’s box running parallel to the foul line.

The long side of the coach’s box.

The short side of the coach’s box.

The short side of the coach’s box.

The distance from the inside edge of the batter’s box to the outside edge of the batter’s box.

The back point of home plate (apex) to any portion of the backstop. Distance listed in the table is the minimum for that league. Distance can be greater than the minimum, but it cannot be any less.

The minimum distance from the apex of home plate, down the right and left field foul lines to the outfield fence.

The minimum distance from the apex of home plate to the centerfield fence (following field centerline).

BASEBALL: From the center of the mound outward. SOFTBALL: From the front center of the pitching rubber outward. The circle that is scribed from this radius is what is chalked to define the “Softball Pitcher’s Circle.”

From the apex of home plate along the centerline to the front center of the pitching rubber.