The Ryder Cup is a golf trophy contested biennially in an event officially called the Ryder Cup Matches by teams from Europe and the United States. The Ryder Cup was first competed for in 1927, with the US competing against Great Britain. After nearly 40 years of US dominance (Britain won only once between 1935 and 1973) it was extended to Britain and Ireland in 1973 and then Europe in 1979, which made the Cup considerably more competitive. Currently, the Ryder Cup Matches are jointly administered by the PGA of America and the PGA European Tour.