BEIJING — A few fun-loving fresh faces have suddenly turned Jamaica into the "World's Fastest Nation."

And that supposed U.S. track and field juggernaut? Well, things aren't quite going according to plan.

Right fist thrust overhead as she crossed the finish line all alone, silver braces shining in the Bird's Nest lights as she hopped in celebration like the 21-year-old she is, little-known Shelly-Ann Fraser won the women's 100 meters Sunday night in 10.78 seconds to help make these Olympics a sweeping success for the Caribbean island.

Fraser was followed across the line, steps later, by teammates Sherone Simpson and Kerron Stewart, who both finished in 10.98 and both collected silvers — giving Jamaica the first sweep of medals in a women's 100 by any nation at any Olympics or world championships.

That impressive display came one day after Usain Bolt's easy-as-could-be, hot-dogging, record-breaking victory in the men's 100 — giving Jamaica the first sweep of men's and women's 100 golds at any Olympics since 1988.

Not bad for a nation of 2.8 million, about the population of Chicago. Not bad for a nation that long has produced top sprinters but never an Olympic dash champion, man or woman, before this wonderful 2-for-2 weekend.

"I was speechless yesterday for a while. Today I cried," Jamaica's minister of sport, Olivia Grange, said. "Little Jamaica — our country is blessed with some of the best, if not the best, talent you can find."

Now compare and contrast. The single 100 bronze for the United States, earned by Walter Dix, amounts to the country's worst combined showing in the men's and women's dashes at an Olympics since earning zero medals in the 100 at both the 1980 Moscow Games — where, let's remember, a boycott prevented any Americans from competing — and the 1976 Montreal Games.

"We've dominated for years, and now it's their time," said Lauryn Williams, the 2004 Olympic silver medalist and 2005 world champion — and one of three U.S. women who never mounted a challenge during Sunday's final.

"We're getting a pretty good taste of what it's like to be at the bottom," Williams said.

The United States protested the results in the women's 100, asking that the race be reviewed because of a possible false start by American Torri Edwards — who wound up last. The appeal was swiftly rejected, and the biggest consequence was that the Jamaican women would have to wait until Monday to receive their medals at a postponed ceremony.