What is the ruling when a player repairs spike marks on the line of the putting green?

In the context of golf rules, when a player repairs spike marks on the line of the putting green, it is permitted and incurs no penalty. The rules of golf allow players to take certain actions to maintain the condition of the putting surface, ensuring fairness in play.

Repairing spike marks helps create a smoother surface for putting, thus enhancing the game experience and promoting fair competition. The ability to repair damage done by spiked shoes recognizes that players should have the opportunity to play on the best possible surface without being penalized for conditions that might negatively affect their putts.

Consequently, there is no stroke penalty associated with this action, as it's an integral part of maintaining the putting green, reflecting the understanding that golf is a sport that values both fairness and player experience.