Identify the format before judging the order
Rule 6 allows responsible ready golf in stroke play. In match play, an opponent can cancel a stroke played out of turn and require it to be replayed. The same order of visible shots can therefore have different procedural consequences.
Imagine two balls, one twenty metres from the hole and one ten metres away. The nearer player goes first while the farther player is preparing. The short-distance fact is identical in both formats. What changes is whether these players are direct match opponents or members of a stroke-play group.
Why the replay is not necessarily a penalty stroke
If the opponent cancels an out-of-turn match-play stroke, watch the ball being restored and the proper order resumed. Do not automatically add a penalty stroke because the first shot was removed from the sequence. Cancellation and adding a stroke are different mechanisms.
A viewer’s note can use two columns: stroke happened, stroke counts. That distinction helps when the first attempt was excellent and the replay is poor. The poorer result may feel like punishment, but the explanation begins with the order-of-play procedure. An agreement deliberately creating an advantage in stroke play introduces another issue; the simple ready-golf illustration here assumes responsible play without that arrangement.
Questions answered
Is out-of-turn play always penalised in stroke play?
No; responsible ready golf is allowed.
Can the match opponent cancel the out-of-turn stroke?
Yes, within the rule’s procedure.
Sources & further reading
Official references for the subjects discussed. Service terms and device software can change.