"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.
Not that a ruling for the U.S. would have made much of a difference. The Jamaicans, particularly Fraser, were so much better that it's hard to imagine the outcome being much different if the race were run again.
It was all part of an all-around rough day for the Stars and Stripes, beginning in the morning, when U.S. record holder and 2004 bronze winner Deena Kastor quit because of a broken right foot about three miles into the women's marathon won by Constantina Tomescu-Dita of Romania.
Then, in the men's 1,500 metres, two-time Olympic medalist Bernard Lagat, U.S. team flagbearer Lopez Lomong and NCAA champion Leo Manzano - all naturalised citizens making their Olympic debuts for their new country - failed to reach the final.
"I gave everything I had," said Lagat, who won a silver and bronze representing his native Kenya at the past two Summer Games.
Bad newsThere was more bad news when 2004 relay gold medalist Dee Dee Trotter and Mary Wineberg flopped in the women's 400 semi-finals.
At least favourite Sanya Richards left everyone in her semi-final well behind by the half-way mark and coasted home in 49.90 seconds, the fastest time by nearly a quarter-second in any of the three heats.
Richards could be part of a stronger upcoming presence for
the Americans, with the potential for a sweep in Monday's men's 400-metre hurdles.
Still, it'll be tough to top what Jamaica already has done - and make track and field at these Olympics be remembered as anything other than Jamaica's coming-out party, replete with reggae music echoing through the stadium.
Fraser called it a "crazy Bolt Effect."
Bolt talks about his love of dancing and preparing for the biggest moment of his life with a combination of TV watching, nap taking and chicken-nugget eating.
Fraser bared her braces with a wide, gee-whiz smile when her name was announced over the loudspeakers as the contestants waited to fold themselves into the starting blocks for the final. It was a striking contrast to the total lack of expression on the faces of Edwards and Williams.
Bolt and Fraser were both relatively unheralded in the individual 100 before this season. They also share an age - and now so much more.
Like Bolt, Fraser celebrated before her work was done, cocking her fist back over her shoulder and punching the air as she arrived at the finish line. Nothing on the scale of Bolt's arms-extended, palms-up, chest-slapping display, mind you, but an in-stride, in-race celebration nonetheless.
And, also like Bolt, Fraser won by a whopping two-tenths of a second, a significant margin in such a short race, and the largest in the women's Olympic 100 final since 1988, when Florence Griffith-Joyner broke the world record to win gold.
"When I was thinking about it, I was getting ahead of myself," Fraser said about clutching a gold medal. "I was like, 'Calm down. First you need to go out there and do it.'"
Her win came less than two hours after Bolt was back in the Bird's Nest to accept his medal.
Coming Friday is the final of the women's 400-metre relay, where the Jamaicans figure to be big favourites: Not only do they have the top three finishers in the individual 100, but now they get to add Veronica Campbell-Brown, the reigning world champion in the dash.
Campbell-Brown failed to qualify in the individual event at the Jamaican trials. Her spot essentially went to Fraser, who didn't have a 100 under 11.3 seconds on her resume before this year.
Back in Fraser's rough Kingston neighbourhood, an area notorious for gang violence, people danced in the streets, banged pots together and waved their country's green-yellow-and-black flags.
"I can't wait," Fraser said, "to get home."
Her reaction was nowhere near as exuberant as those of Bolt and Fraser, who appear to have just the sort of speed and personalities to help their sport overcome its recent doldrums.
Jamaica's Shelly-Ann Fraser, right, celebrates winning the gold in the women's 100-metre final. - AP