The 23-year-old Federer dominated the men's game this year, winning 11 titles including three Grand Slams and the Masters Cup.

Russian Myskina, the French Open [ Images ] champion, pipped France's [ Images ] Amelie Mauresmo [ Images ] after impressive performances in the Grand Slams, the Olympics [ Images ] and the Fed Cup.

"Roger Federer was the clear choice for ITF World Champion based on his extraordinary performance in 2004," ITF President Francesco Ricci Bitti said in a statement.

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"The selection of Anastasia Myskina came down to her performance at the Olympic Games [ Images ] where she reached the semi-finals and her seven singles wins in Fed Cup in 2004."

Federer won the Australian Open [ Images ], Wimbledon [ Images ] and the U.S. Open to become the first man since Sweden's Mats Wilander in 1988 to win three Grand Slam titles in one season.

Myskina, 23, continued Russia's [ Images ] domination of women's tennis. Maria Sharapova [ Images ] won Wimbledon and Svetlana Kuznetsova [ Images ] clinched the U.S. Open by beating compatriot Elena Dementieva [ Images ] in the final.