Lost ball - When ball is lost
Your ball is lost if not found in three minutes after you or your caddie begins to search for it. If a ball is found in that time but you are uncertain whether it is your ball:
  • You must promptly attempt to identify the ball and are allowed a reasonable time to do so, even if that happens after the three-minute search time has ended.
  • This includes a reasonable time to get to the ball if you are not where the ball is found.
If you do not identify your ball in that reasonable time, the ball is lost.