What happens if your ball crosses out of bounds then comes back?
No penalty — if your ball crosses the out-of-bounds line but comes to rest back in bounds, it's in play under Rule 18.2. The ball is only out of bounds when it finishes outside the white stakes, not when it crosses them.
The situation
Your ball flies over the white stakes, bounces off a wall or tree beyond the boundary, and rolls back onto the course. Or it lands just over the OB line and rolls back in.
The rule
Under Rule 18.2, a ball is only out of bounds if it comes to rest out of bounds. If the ball crosses the OB line during its flight or bounce and ends up back in bounds, it is in play — no penalty. The white stakes define where the ball finishes, not where it travelled. OB is not like a penalty area, where crossing the line is what matters — it's purely about the final resting position.
Real example
Your drive hits a fence post just beyond the white stakes and bounces back, coming to rest in the rough inside the course. Even though the ball clearly went over the line, it came to rest in bounds — play it as it lies, no penalty.
What to do on the course
- Check where the ball actually stopped, not where it crossed the line
- If the ball is touching the OB line or any part of it is inside the line: in play
- If there's genuine doubt about whether it came to rest in or out, play a provisional ball before going to look — and if you then find the original in bounds, the rules on finding your ball after a provisional decide which ball you must play
- If the ball rests against the OB stake itself, it's in play (the inside edge of the stake defines OB)
- The same rest-position logic applies at penalty areas: a ball that skips across a pond and comes to rest outside the red or yellow stakes is in play with no penalty — see what happens when your ball bounces out of a water hazard
Penalty
No penalty. Play the ball from where it came to rest in bounds.
When is a ball considered "at rest"?
A ball is "at rest" when it stops moving and stays in one spot. There's no minimum time — if it stops, even for a split second, and doesn't move again, it's at rest. If it's wobbling in the wind or on a slope and hasn't settled, it's not at rest yet. This matters because OB is judged only at the moment the ball comes to rest. If your ball bounces off a fence post, rolls back in bounds, and stops — it's in play. If it keeps trickling and eventually rolls out of bounds, it's OB.
Keep reading: penalty area
Frequently asked questions
What if my ball hits a fence post beyond the white stakes and bounces back onto the fairway?
No penalty. Under Rule 18.2, the ball is in play because it came to rest in bounds, even though it crossed the OB line and hit the fence post. Play it as it lies.
Does it matter that the ball clearly crossed the OB line in the air?
No, crossing the line in the air doesn't matter. Out of bounds is defined solely by where the ball comes to rest, not by its flight path. If it finishes in bounds, it's in play.
What if the ball comes to rest touching the out-of-bounds stake?
The ball is in play. The inside edge of the white stake defines the boundary, so a ball touching the stake is considered in bounds. No penalty, play it as it lies.
Should I play a provisional ball if I'm not sure where it stopped?
Yes, if there's genuine doubt about whether the ball finished in or out of bounds, play a provisional ball before going to look. If you then find the original in bounds, the provisional is abandoned and you continue with the original.
Is this the same rule for penalty areas like water hazards?
Similar logic applies: a ball that skips across a penalty area and comes to rest outside the red or yellow stakes is in play with no penalty. However, penalty areas have additional relief options that OB does not.
What if the ball bounces back in bounds but then rolls out again?
The ball is out of bounds. Rule 18.2 looks at where the ball finally comes to rest. If it stops in bounds, then moves again (wind, slope, whatever) and finishes out of bounds, it's OB — stroke-and-distance penalty.
My ball hit a stake, bounced back, and stopped against the same stake. In or out?
In play. The inside edge of the white stake defines the boundary. A ball touching the stake — even if it's leaning against the outside face — is in bounds because part of the ball breaks the vertical plane of the inside edge.
Can I declare my ball out of bounds if I don't like where it ended up after crossing the line?
No. You can't choose OB. If the ball comes to rest in bounds, it's in play. Your only option to replay from the previous spot is stroke-and-distance under Rule 18.1, which adds a penalty stroke — not the same as finding it OB.