History
George H. Walker, the president of the U. S. Golf Association, came up with the idea of periodic competition between amateur teams representing the United States and Great Britain.
The first such competition took place in 1922, for a prize then called the International Trophy. However, the press more commonly referred to it as the Walker Cup, which is now the official name.
Walker Cup matches are played in odd-numbered years, with the site alternating between the U. S. and Great Britain. The matches is always held just before or just after the national amateur championship tournament of the host country, so the golfers can take part in both events.
Each team is made up of 10 golfers. The USGA selects the American team and the Royal and Ancient Golf Club of St. Andrews, Scotland, selects the British team.