Golf's governing bodies ruled on Wednesday that Augusta National officials made the correct call not to disqualify world No 1 Tiger Woods for an improper ball drop at the Masters.

The Royal & Ancient and United States Golf Association released a joint statement explaining in lengthy detail the controversial events that occurred during Woods's second round and sent the year's first major into a frenzy.

Woods avoided disqualification from the Masters when, after failing to add strokes to his scorecard for an improper drop, officials used discretionary powers to hand him a two-stroke penalty.