Basic Mound Specifications

90' Field

  • Height of Mound: 10" above home plate
  • Distance from apex of home plate to front of pitching rubber: 60'6' 

80' Field

  • Height of Mound: 8" above home plate
  • Distance from apex of home plate to front of pitching rubber: 54'

70' Field

  • Height of Mound: 6" above home plate
  • Distance from apex of home plate to front of pitching rubber: 48'

60' Field

  • Height of Mound: 4" Mustang League; 6" Little League, above home plate
  • Distance from apex of home plate to front of pitching rubber: 40-46'

50' Field

  • Height of Mound: 4" above home plate
  • Distance from apex of home plate to front of pitching rubber: 35-38'

Proper Pitching Rubber Alignment

The front of the pitching rubber must be 60 feet 6 inches from the apex (point) of home plate and the top of the rubber should be 10 inches above home plate. Follow these simple steps to set up your pitching rubber:

  1. The pitching rubber is 24 inches long. Take a pencil and mark a line down the center.
  2. Take a string from the apex of home plate and extend it to the second base peg.
  3. Measure 60 feet 6 inches from the tip of home plate and sink a spike. This marks the front of the rubber.
  4. Take a transit level and obtain a reading off home plate. The top of the pitching rubber must be 10 inches above home plate. Build or reduce height of the mound accordingly using Turface® Professional Mound Clay®. If a transit level is not available, drive a stake at the apex of home plate measuring 10 inches high. Run a tight string over the pitching rubber and hang string level. Adjust the rubber height until line is level.
  5. Square the rubber into position by taking a measuring tape and measure from the front left corner of home plate to the front left corner of the pitching rubber. Do the same on the right side. When these two measurements equal 59 feet 19 inches, the rubber will be squared. Make sure that the rubber measures 12 inches on each side of the anchored spike.

HINT: If building a mound from scratch, it is a good idea to place a solid concrete block under the rubber to keep it from shifting.