What Happens If Your Golf Ball Is Lost or Out of Bounds: In Plain Words

What “stroke and distance” means

Rule 18 covers taking relief under penalty of stroke and distance. The USGA explains why: when a ball is lost outside a penalty area or comes to rest out of bounds, the required progression of playing from the teeing area to the hole is broken, and the player must resume that progression by playing again from where the previous stroke was made.

The name tells you the two parts:

• Stroke: you add one penalty stroke.
• Distance: you lose the distance the shot travelled, because you play again from the spot of the previous stroke.

The USGA’s own plain-words lesson puts it this way: if you have hit the ball out of bounds, or you have not found it within the three-minute search period, “there is only one option: stroke and distance” — you return to the spot you last played from, play another ball from there, and get one penalty stroke.

Counting example, off the tee: your tee shot (stroke 1) goes out of bounds. Add the one penalty stroke. When you tee up again from the same tee, you are playing your third stroke. The penalty itself is one stroke — it only feels like two because the first shot still counts and its distance is lost.

When is a ball “lost”?

Under Rule 18.2, a ball is lost if it is not found in three minutes after the player or his or her caddie begins to search for it.

If a ball is found in that time but it is uncertain whether it is the player’s ball:

• The player must promptly attempt to identify the ball, and is allowed a reasonable time to do so, even if that happens after the three-minute search time has ended.
• That includes a reasonable time to get to the ball if the player is not where the ball is found.
• If the player does not identify his or her ball in that reasonable time, the ball is lost.

When is a ball out of bounds?

Under Rule 18.2, a ball at rest is out of bounds only when all of it is outside the boundary edge of the course.

A ball is in bounds when any part of the ball:

• Lies on or touches the ground or anything else (such as any natural or artificial object) inside the boundary edge, or
• Is above the boundary edge or any other part of the course.

So a ball that is partly in bounds is in bounds. And a player may stand out of bounds to play a ball that is on the course.

What you must do when your ball is lost or out of bounds

Rule 18.2 says the player must take stroke-and-distance relief: add one penalty stroke, and play the original ball or another ball from where the previous stroke was made.

You may also choose this relief at any time. Rule 18.1 says that at any time, a player may take stroke-and-distance relief by adding one penalty stroke and playing the original ball or another ball from where the previous stroke was made — no matter where the player’s ball is on the course. The USGA lesson makes the same point: proceeding under stroke and distance is always an option, even if your ball is perfectly playable — but when your ball is out of bounds or has not been found, it becomes the only option.

One firm consequence: once the player puts another ball in play under penalty of stroke and distance, the original ball is no longer in play and must not be played. Rule 18.1 says this is true even if the original ball is then found on the course before the end of the three-minute search time.

The one exception to know about

Rule 18.2 has an exception. Instead of taking stroke-and-distance relief, the player may substitute another ball as allowed under a Rule that applies when the ball has not been found and it is known or virtually certain what happened to it — for example, that the ball:

• Came to rest on the course and was moved by an outside influence, or was played as a wrong ball by another player;
• Came to rest on the course in or on a movable obstruction, or in an abnormal course condition;
• Is in a penalty area; or
• Was deliberately deflected or stopped by any person.

“I think it is probably in there” is not the test the Rule words — the test is that it is known or virtually certain.

The provisional ball: the time-saver

If your ball might be lost outside a penalty area or be out of bounds, Rule 18.3 lets you play another ball provisionally, under penalty of stroke and distance, to save time — instead of walking all the way back if the original ball is not found.

• You must announce it first. Before the stroke is made, the player must announce that he or she is going to play a provisional ball. It is not enough only to say that you are playing another ball or playing again — you must use the word “provisional” or otherwise clearly indicate that you are playing the ball provisionally under Rule 18.3.
• If you do not announce it, and you play a ball from where the previous stroke was made, that ball is your ball in play under penalty of stroke and distance.
• Penalty-area limit: if you are aware that the only possible place your original ball could be lost is in a penalty area, a provisional ball is not allowed.
• You may keep playing it without it losing its provisional status, so long as it is played from a spot that is the same distance from the hole, or farther from the hole, than where the original ball is estimated to be.

The provisional ball becomes your ball in play under penalty of stroke and distance when the original ball is lost anywhere on the course except in a penalty area, or is out of bounds — and also when the provisional ball is played from a spot nearer the hole than where the original ball is estimated to be.

The provisional ball must be abandoned when the original ball is found on the course outside a penalty area before the end of the three-minute search time — you must play the original ball as it lies — or when the original ball is found in a penalty area, or is known or virtually certain to be in a penalty area. In either case, all strokes made with the provisional ball before it was abandoned, including any penalty strokes solely from playing that ball, do not count.

The fairway-drop Local Rule is not automatic

Many casual rounds talk about dropping a ball near the fairway instead of going back. That comes from an optional Local Rule — and the USGA’s topic page is clear that it is an alternative only when it is in effect. The USGA says this Local Rule is recommended for casual play and not for competitions involving highly-skilled players.

When it is in effect, the USGA describes it this way: for two penalty strokes, you can estimate the spot where your ball is lost or went out of bounds, and then find the nearest fairway edge that is not nearer the hole than the estimated spot. You can drop a ball in the fairway within two club-lengths of that fairway edge point, or anywhere between there and the estimated spot where your ball is lost or went out of bounds.

So the two-penalty-stroke price belongs to that optional Local Rule — it is not the penalty in Rule 18, and the drop is not available just because a group prefers it, unless the Local Rule is in effect for the round.