The Presidents Cup is a series of men's golf matches between a team representing the United States and an International Team representing the rest of the world except Europe as that continent competes against the United States in a similar but considerably older event, the Ryder Cup.
Each team has a captain, usually a highly respected golf figure, who is responsible for choosing the pairs in the doubles events, which consist of both alternate shot and best ball formats (also known as "foursomes" and "fourball" matches respectively).
Upon a tie, the captains would reveal the players who would play a sudden-death match to determine the winner.
In 2003, however, the tiebreaker match ended after three holes because of darkness, and the captains, Gary Player and Jack Nicklaus, agreed that the Cup would be shared by both teams.
All singles matches would continue in this format until one team reaches the required point total to win the Presidents Cup.