Switzerland's Roger Federer and Russian Anastasia Myskina were named 2004 International Tennis Federation World Champions on Monday.
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 champion, pipped France's Amelie Mauresmo after impressive performances in the Grand Slams, the Olympics 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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Myskina, 23, continued Russia's domination of women's tennis. Maria Sharapova won Wimbledon and Svetlana Kuznetsova clinched the U.S. Open by beating compatriot Elena Dementieva in the final.