BERLIN (AP) - Usain Bolt cruised during the 200-meter semifinals on Wednesday, looking sharp for an assault on a second world record at the world championships.
Jamaica didn't have to wait until Bolt's final on Thursday for another reggae celebration. Brigitte Foster-Hylton followed up some Bolt-like clowning ahead of the race with a clean run to claim the 100 hurdles title ahead of Priscilla Lopes-Schliep of Canada. Delloreen Ennis-London of Jamaica took bronze.
The Americans were outrun again, with Olympic champion Dawn Harper fading to seventh place.
So far, the Americans have three golds and eight medals overall, just ahead of Jamaica with three golds and seven total.
On the eve of the 200 final, Bolt thrived in 80-degree heat in Berlin, running hard on the curve before closing it down just past the halfway mark and strolling past the line in 20.08 seconds. Despite easing up, Bolt still had the fastest qualifying time.
If he had pushed, Bolt could easily have broken Tyson Gay's 2007 championship record of 19.76 seconds. Bolt's world record stands at 19.30.
It stood in sharp contrast with Tuesday, when unseasonably cold weather turned him lethargic.
"I am feeling much better than yesterday," Bolt said.
Defending champion Gay is injured and out of the 200, and American teammate Shawn Crawford had to push hard to qualify third in Bolt's heat.
In the second semifinal heat, American sprinter Wallace Spearmon finished first in 20.14, edging Steve Mullings of Jamaica.
The temperature is expected to exceed 85 degrees Thursday at the Olympic Stadium, and Bolt loves the heat.
He cut through the swelter of Beijing last year on his way to three Olympic golds and as many world records.
Bolt tried to play down expectations of setting a record every time he lines up in a final. A foot injury had slowed his curve running early in the season.
"I really have not done the same amount of work like I did for the 100," Bolt said.
Crawford was so awed by Bolt's 100 record of 9.58 that he thinks his rival can do it again, this time with "19:28, that is what I think."
"My goal is to run 19.51," Crawford said. "I'd be happy with that. He is looking very impressive right now."
Bolt will be looking to give his Caribbean nation a 3-0 edge over the United States in sprint events, bringing Jamaica closer to the 5-0 thrashing of Beijing.
Defending 200-meter champion Allyson Felix will try to lift the gloom hanging over the American sprint team.
With effortless grace, she easily won her heat to advance into Thursday's semifinals. Likewise for Olympic champion Veronica Campbell-Brown of Jamaica.
American sprinter Marshevet Hooker had the fastest qualifying time of 22.51.
After being the star with three golds at the last world championships in Osaka, Japan, Felix was upstaged at the Beijing Olympics in the 200 by Campbell-Brown.
The United States will be looking for gold in the 100 hurdles, with Olympic champion Dawn Harper and teammate Damu Cherry favored to medal.
In the 1,500, defending champion Bernard Lagat came in third after he was boxed in behind winner Yusuf Saad Kamel of Bahrain and silver medalist Deresse Mekonnen of Ethiopia.
Olympic champion LaShawn Merritt and defending champion Jeremy Wariner left little doubt the U.S. could count on another gold in Friday's 400 final, firing each other up for another battle for one-lap supremacy.
Wariner had dominated the distance since the Athens Games in 2004, but Merritt upset him at the Beijing Games last year to take Olympic gold.
Merritt looked at the stadium clock to make sure of winning his semifinal heat and still set a world leading time of 44.37 seconds. Wariner coasted to a 44.69.
"I set it up good," Merritt said. "I wanted to come out today and set the bar, set the tone, finish up good."
What looked like a guaranteed gold for Cuba with Dayron Robles in the 110 hurdles suddenly looked shaky when the Olympic champion hit the first obstacle and struggled to get to the semifinals with the slowest qualifying time.
"I am OK, but I have pain that maybe nobody can understand," Robles said. "But everything is fine."