A player can get relief from a sprinkler head that interferes with their swing without penalty?

The premise of the question is grounded in the rules of golf concerning relief from immovable obstructions. According to the Rules of Golf, a sprinkler head is classified as an immovable obstruction, and players are entitled to take relief when their stance or swing is affected by one.

If a player's swing is impeded by a sprinkler head, they can proceed to find the nearest point of complete relief, which is defined as the closest spot where the obstruction no longer interferes with the player's stance or swing, while still ensuring that they remain in the same area of the course they were on. Importantly, this relief is granted without any penalty whatsoever, as the Rules of Golf recognize the nature of immovable obstructions and aim to facilitate fair play.

In contrast, relief is not conditional upon whether the sprinkler head is marked as a hazard, nor is it limited to specific formats like stroke play; the option to take relief applies universally across different forms of play. Thus, the understanding of immovable obstructions and the entitlement to relief under these circumstances leads to the conclusion that a player can indeed get relief from a sprinkler head that interferes with their swing without penalty.