What happens if a player accidentally moves their ball during a backswing?

If a player accidentally moves their ball during a backswing, the player is required to replace the ball without incurring a penalty. This rule is part of the understanding that accidental movements of the ball, particularly during the player's swing, do not constitute a violation of the rules. The key principle here is that any accidental movement caused by the player's actions, such as their backswing, is viewed as unintentional. Consequently, the rules allow for the ball to be replaced in its original position without penalizing the player, maintaining fairness in play.

In this situation, the player should take care to ensure the ball is returned to its exact spot before proceeding. The choice that states the player continues play without changes does not apply, as the player must replace the ball. Similarly, calling for a ruling is unnecessary in this scenario, as the rules clearly cover this situation. Incurring a penalty stroke would only apply to specific infractions, which do not include accidental movements during the backswing.