U.S. pair Misty May and Kerri Walsh say the Olympics are more of a mental test than a physical one. So far, they've passed with ease.

The top-ranked team was overpowering for the second straight match of pool play, beating Rebekka Kadijk and Marrit Leenstra of the Netherlands, 21-11, 21-13.

"That felt unbelievable, that felt so right. Misty and I played some great volleyball," said the 6-foot-3 Walsh, who finished with 21 kills and two blocks.

As they did in their opener, the Americans jumped to a big early lead, with Walsh pounding down spikes and May fielding every attack.

"Our goal is always to play ahead because when you have that confidence, it allows you to breathe a little bit easier," Walsh said.

While the U.S. women are cruising to the 16-team, single-elimination medal round, both men's teams are on the brink of elimination.

Dax Holdren and Stein Metzger dropped to 1-1 in pool play with a 14-21, 21-15, 16-14 loss to Norwegians Iver Horrem and Bjorn Maaseide.

The other American men's duo, Dain Blanton and Jeff Nygaard, 0-2 in pool play, will face fifth-ranked Swiss pair Stefan Kobel and Patrick Heuscher today.

Also yesterday, all four Brazil teams stayed unbeaten and clinched berths in the medal round.

Top-ranked team Misty May, left, and Kerri Walsh have been overpowering.