This is the 23rd playing of the biennial event, in which international teams of three vie for the Eisenhower Trophy.
Barnes, 21, of Stockton, Calif., won the U.S. Amateur at Oakland Hills Country Club, 2 and 1, over Mahan. The University of Arizona senior was a 2001-02 All-America honorable mention selection and captured co-medalist honors at the 2002 NCAA West Regional. He was the national Freshman of the Year after the 1999-2000 season, during which he won two tournaments and finished third at the NCAA Championship.
Mahan, 20, of McKinney, Texas, was the 1999 U.S. Junior Amateur champion and the '99 AJGA Player of the Year. Mahan, a junior at Oklahoma State University, played for the USA at the 2002 Palmer Cup and was a first-team All-America selection in 2001-02 after winning three tournaments and finishing third at the NCAA Championship. He was named the Pac-10 Freshman of the Year at the University of Southern California before transferring to Oklahoma State, where he earned Big 12 Player of the Year honors last season.
Trahan, 21, of Inman, S.C., is the 2002 NCAA Player of the Year, winning both the Jack Nicklaus Award and the Ben Hogan Award. Trahan, a senior at Clemson University, was the 2000 U.S. Amateur Public Links champion and a member of the 2001 USA Walker Cup and 2002 Palmer Cup teams. He has eight victories during his collegiate career, including the 2002 NCAA East Regional, the 2002 Azalea Classic, and the 2001 Jones Cup. The 2000 Carolinas Player of the Year, he was also the Atlantic Coast Conference Rookie of the Year and the 2002 ACC Player of the Year.
In addition, 2002 U.S. Amateur Public Links champion Ryan Moore, 19, of Puyallup, Wash.; Bill Haas, 20, of Greer, S.C.; and 2002 Western Amateur winner John Klauk, 23, of Ponte Vedra Beach, Fla., were named as first, second and third alternates to the USA squad.
The United States of America has won the men's World Amateur Team championship 11 times and is the defending champion, having won the 2000 event at Sporting Club Berlin in Bad Saarow, Germany.
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