Following are the results of men's quarterfinals in beach volleyball tournament at the Beijing Olympics on Monday:

Ricardo Santos/Emanuel Rego, Brazil, bt Jake Gibb/Sean Rosenthal, United States, 2-0 (21-18, 21-16)

Renato "Geo" Gomes/Jorge "Gia" Terceiro, Georgia, bt Reinder Nummerdor/Richard Schuil, Netherlands, 2-0 (21-19, 21-19)

Todd Rogers/Phil Dalhausser, United States, bt David Klemperer/Eric Koreng, Germany, 2-0 (21-13, 25-23)

Marcio Araujo/Fabio Luiz Magalhaes, Brazil, bt Florian Gosch/Alexander Horst, Austria, 2-0 (22-20, 21-17)

(Xinhua News Agency August 18, 2008)