A player must start each hole by playing a ball from anywhere inside the teeing area under Rule 6.2b.

If a player who is starting a hole plays a ball from outside the teeing area (including from a wrong set of tee markers for a different teeing location on the same hole or a different hole):

(1) Match Play. There is no penalty, but the opponent may cancel the stroke:

• This must be done promptly and before either player makes another stroke. When the opponent cancels the stroke, they cannot withdraw the cancellation.
• If the opponent cancels the stroke, the player must play a ball from inside the teeing area and it is still their turn to play.
• If the opponent does not cancel the stroke, the stroke counts and the ball is in play and must be played as it lies.

(2) Stroke Play. the player gets the general penalty (two penalty strokes) and must correct the mistake by playing a ball from inside the teeing area:

• The ball played from outside the teeing area is not in play.
• That stroke and any more strokes before the mistake is corrected (including strokes made and any penalty strokes solely from playing that ball) do not count.
• If the player does not correct the mistake before making a stroke to begin another hole or, for the final hole of the round, before returning their scorecard, the player is disqualified.

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