What happens if my ball hangs on the lip and drops after the ten seconds?

Yes, you take a one-stroke penalty. If your ball overhangs the hole and doesn't fall during the allowed waiting time (reasonable time to reach the hole plus ten seconds), it's treated as at rest. If it then drops before you play it, you've holed out with your previous stroke but add one penalty stroke to your score for the hole (Rule 13.3a).

How the waiting time works

When any part of your ball overhangs the lip, you get a reasonable amount of time to walk up to the hole — however long that takes given where you hit from and what else is happening on the green — plus ten extra seconds to stare at it and hope. If the ball falls in during that window, great: it counts as holed with your last stroke, no penalty. If it doesn't fall, the clock stops and the ball is officially at rest.

When it drops after the clock stops

Here's the kicker: once that waiting time expires and the ball hasn't fallen, it's treated as being at rest. If it then decides to drop on its own — maybe a gust of wind, a vibration from a mower, the greenskeeper sneezes — before you make your next stroke, you've still holed out with your previous stroke. But you add one penalty stroke to your score for the hole. That's the price of the ball taking its sweet time.

What counts as reasonable time

Reasonable time isn't a fixed number. It depends on the situation: if you chipped from thirty yards off the green, it might take a few minutes to walk up while others play and everyone converges on the putting surface. It also includes a moment for your natural reaction — that split second of watching, hoping, maybe cursing — before you start moving. The ten seconds only starts once you're actually at the hole.

Exceptions that change the answer

• You (or your caddie) remove the flagstick and the ball moves → Replace the ball on the lip with no penalty. The waiting time no longer applies — the ball is treated as having come to rest right then (Rule 13.3b, Interpretation 13.3b/1).
• An opponent in match play deliberately lifts or moves your overhanging ball before the waiting time ends → Your ball is treated as holed with the previous stroke, and the opponent gets no penalty (Rule 13.3b).
• Another player in stroke play deliberately lifts or moves your overhanging ball before the waiting time ends → That player gets the general penalty (two strokes). Your ball must be replaced on the lip (Rule 13.3b).

Frequently asked questions

How long is "reasonable time" to reach the hole?

There's no set number. It's whatever time it reasonably takes you to get to the hole given where you played from, other players' shots, and the route you need to walk. It also includes a brief moment for your natural reaction to the ball not dropping. The ten-second countdown only starts once you're at the hole.

What if the ball falls in during the ten seconds?

It counts as holed with your previous stroke. No penalty. The hole is over.

What if the ball falls in after the ten seconds but before I tap it in?

You've holed out with your previous stroke, but you add one penalty stroke to your score for the hole. The ball was treated as at rest once the waiting time expired.

Does it matter what made the ball fall — wind, vibration, a bird?

No. Once the waiting time ends and the ball hasn't fallen, it's at rest. If it then falls for any reason before your next stroke, the one-stroke penalty applies.

What if I accidentally knock the ball in while removing the flagstick?

Replace the ball on the lip with no penalty. The waiting time ends immediately — the ball is treated as at rest. You then play from there (Interpretation 13.3b/1).