BEIJING, Aug. 15 (Xinhua) -- Following are the results from the Beijing Olympic tennis event on Friday (prefix number denotes seeding):

Men's singles semifinals:

12-Fernando Gonzalez, Chile, bt 8-James Blake, United States, 4-6, 7-5, 11-9

Men's doubles quarterfinals:

4-Roger Federer/Stanislas Wawrinka, Switzerland, bt 7-Mahesh Bhupathi/Leander Paes, India, 6-2, 6-4

Women's doubles quarterfinals:

6-Alona Bondarenko/Kateryna Bondarenko, Ukraine, bt Flavia Pennetta/Francesca Schiavone, Italy, 6-1, 3-6, 7-5

Women's doubles second round:

2-Serena Williams/Venus Williams, United States, bt Ayumi Morita/Ai Sugiyama, Japan, 7-5, 6-2

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