Why can spike marks be repaired?
The repair of spike marks which might assist the player in his subsequent play of the hole would constitute a breach of Rule 16-1c. Since it is not always possible to distinguish spike marks from other damage or irregularities of surface, allowing the repair of spike marks would, in effect, entail permitting any damage or irregularity of surface on the putting green to be repaired. This is contrary to the fundamental principle of “playing the course as you find it” and it would undoubtedly lead to an increase of slow play as players attempt to perfect their line of putt.
