If made during a round of at least nine holes, with the exception of a hole in one made during a match, which should be valid even if the match ends before the necessary round is finished. A hole in one made in a practice round in which the golfer is playing two or more balls should not be permitted if the player is only playing one ball. Section 5-2 (c) of the USGA Handicap Manual addresses nine-hole scores, stating: (ii) At least seven holes must be played. There is no limit to the amount of nine-hole scores that can be recorded on a player's scoring record. Even if a golfer mostly plays nine-hole rounds, he or she can still use a handicap index.