Playing the wrong ball — two strokes, and you must fix it
Playing a wrong ball costs two penalty strokes in stroke play (Rule 6.3c) and must be corrected before you tee off on the next hole — otherwise you're disqualified. In match play, you lose the hole.
What is the penalty for playing the wrong ball?
In stroke play, playing the wrong ball costs you two penalty strokes under Rule 6.3c — and you must correct your mistake by completing the hole with your own ball before you tee off on the next hole. If you don't, you're disqualified.
In match play, the result is simpler and harsher: you lose the hole.
A note on balls played from a penalty area
There's one subtlety that catches people: if you play a wrong ball from a penalty area, those strokes don't count as playing a wrong ball — the strokes simply don't count, and you continue with your own ball. But outside a penalty area, the two-stroke penalty applies.
Why it happens (and how to avoid it)
Wrong ball most common when two groups are playing similar balls into similar spots — or when you use a ball your partner also plays. A few habits kill it:
Avoiding the wrong ball
- Mark your ball with a distinct dot or initials before the round
- Confirm your ball number before you hit, especially after someone finds "your" ball
- Announce your ball (make and number) at the start of a match
- Use a unique marker your group doesn't share
The penalty at a glance
| Format | Penalty for wrong ball | Must you correct it? |
|---|---|---|
| Stroke play (Rule 6.3c) | Two penalty strokes | Yes — hole out with your own ball before next tee |
| Match play (Rule 6.3c) | Loss of hole | No — hole is over |
| Wrong ball from penalty area | No penalty; strokes don't count | Continue with your own ball |
Keep this in your bag
The wrong-ball rule is one of the ten most-missed calls in golf. Our Save Strokes reference has the full set of penalty situations organized for quick mid-round lookups — plus a free version in the Drop Rules Cheat Sheet.
Related: the 3-minute search limit (for that ball you can't find) and cart path relief.