Definition: The indentation that a ball makes in the surface of the putting green upon landing. (Pitch mark is the synonym.) The softer the surface of the putting green, the more likely a ball mark is to result, and the more like that ball mark is to be larger.
Ball marks should be repaired using special tools made for that purpose in order for the green to properly heal. For a tutorial, see How to Repair Ball Marks.
Also Known As: Pitch mark
Alternate Spellings: Ballmark
