Ball marks, shoe damage, old hole plugs, and animal tracks are examples of damage you may repair.
Plain-language guide · Rule 13.1c. Use the current official text and your round’s Local Rules for a ruling.
What to know
Use reasonable actions to restore the surface without delaying play. Natural imperfections, normal wear, and aeration holes are not all automatically repairable as damage.
On the course
Repair a pitch-mark carefully. Do not build a smoother track for your putt.