Titleist Practice Balls | Golf Monthly

"'X-out' is the common name used for a golf ball that a manufacturer considers to be imperfect (usually for aesthetic reasons only, eg.g. paint or printing errors) and, therefore, has crossed out the brand name. A 'refurbished' golf ball is a second-hand ball that has been cleaned and stamped as 'refurbished'.

In the absence of strong evidence to suggest that an 'X-out' or 'refurbished' ball does not conform to the Rules, it is permissible for such a ball to be used. However, in a competition where the Committee has adopted the condition that the ball the player plays must be named on the List of Conforming Golf Balls (see Note to Rule 5-1), such a ball may not be used, even if the ball in question (without the X's or without the 'refurbished' stamp) does appear on the List."