When is a record score officially recognised as a course record?
The term “course record” is not defined in the Rules of Golf, therefore, it is a matter for the Committee in charge of the competition to decide whether it recognises a score as a course record. It is recommended that a record score should only be recognised if made in an individual stroke play competition with the holes and tee markers in their championship positions and a Local Rule on preferred lies is not in operation – see Decision Misc/1.