In 2024, all players must keep their own official score in all sanctioned rounds, and all players must submit their own official scorecard. This is a significant change from previous years. This document aims to provide guidance for TDs and players on how to navigate the new rule. Generally, this document addresses a sanctioned round in a singles playing format. See the International Program Guide for exceptions to the applicability of this rule, which is mandatory in the US and Canada and highly recommended elsewhere.