BEIJING, Aug. 13 (Xinhua) -- Following are the results of preliminaries of Beijing Olympics beach volleyball tournaments on Aug. 13:

    Men's section

    Pool B:

    Rogers/Dalhausser, United States, bt Conde/Baracetti, Argentina, 2-0 (21-12, 21-13)

    Samoilovs/Plavins, Latvia, bt Heyer/Heuscher, Switzerland, 2-1 (21-17, 21-23, 15-13)

    Pool C:

    Gomes/Terceiro, Georgia, bt Fernandes/Morais, Angola, 2-0 (21-14, 21-13)

    Ricardo/Emanuel, Brazil, bt Schacht/Slack, Austria, 2-0 (21-14,21-17)

    Pool E:

    Nummerdor/Schuil, Netherlands, bt Klemperer/Koreng, Germany, 2-0 (21-16, 21-16)

    Laciga/Schnider, Switzerland, bt Kjemperud/Skarlund, Norway, 2-0 (21-17, 21-13)

    Women's section

    Pool A:

    Tian Jia/Wang Jie, China, bt Maaseide/Glesnes, Norway, 2-1 (17-21, 21-14, 15-8)

    van Breedam/Mouha, Belgium, bt Kuhn/Schwer, Switzerland, 2-0 (21-18, 21-17)

    Pool C:

    Barnett/Cook, Australia, bt Anna Paula/Larissa, Brazil, 2-0 (23-21, 23-21)

    Santanna/Martins, Georgia, bt Uryadova/Shiryaeva, Russia, 2-1 (10-21, 22-20, 15-12)

    Pool E:

    Pohl/Rau, Germany, bt Kadijk/Mooren, Netherlands, 2-0 (21-19,21-18)

    Branagh/Youngs, United States, bt Esteves/Crespo, Cuba, 2-1 (21-19,13-21, 15-12)