Women go head-to-head in 400-meter freestyle relay

Australia breaks world record, silver for USA

The Australian team bumped the United States from gold by setting a world record in the women's 4x100-meter freestyle relay on Saturday night at Rio's Olympic Aquatics Stadium.

Team USA of Abbey Weitzeil, Simone Manuel, Dana Vollmer and Katie Ledecky posted a time of 03:31.89 to take the silver, just a second shy of Australia’s 03:30.65 finish. Canada won bronze.

The U.S. team for the preliminary heats earlier on Saturday consisted of Amanda Weir, Lia Neal, Allison Schmitt and Ledecky. They qualified for the final by posting the second fastest time of the heats, behind a new Olympic record set by Australia.

Weitzeil and Manuel, the top finishers in the 100-meter freestyle at the U.S. trials, were held out of the preliminary heat to rest up for the final.

Ledecky wasn't expected to take part in final, but she was chosen after swimming the fastest time of any of the Americans as the anchor in the preliminary heat.