Veronica Campbell of Jamaica won the 200 metre gold medal to add to her bronze in the 100 metre, beating Felix Allyson of the United States and Debbie Ferguson of the Bahamas.
Olga Kuzenkova of Russia won the hammer throw with a heave of 75.02 metres, improving the Olympic record of 73.71 she set in qualifying. Yipsi Moreano took the silver at 73.36 and her Cuban countrywoman Yunaika Crawford won the bronze at 73.16.Marion Jones of the United States, who is under a doping investigation, cleared 6.70 metres in her second attempt to qualify for the long jump final.
Four-time world champion Allen Johnson of the United States clipped a hurdle and fell in the second-round heats of the men's 110 metre hurdles and failed to advance to the semifinals.
Justin Gatlin, the 100 metre champion, advanced to the 200 final by winning his heat in 20.35 seconds. Two other Americans, Shawn Crawford and Bernard Williams, went 1-2 in the other semifinal heat and also advanced. So did Francis Obikwelu of Portugal, the 100 metre silver medalist, and Asafa Powell of Jamaica.
Before the start of the heats, the crowd shouted "Kenteris, Kenteris," recalling Kostas Kenteris, the Greek who won the 200 metre in Sydney but who withdrew from Athens after coming under investigation for allegedly missing a drug test.
In the women's final, Campbell powered home in 22.05, while Felix set a world junior record in getting the silver in 22.18. Ferguson clocked 22.30.
Running on little sleep and in painfully small shoes less than 24 hours after capturing his first Olympic gold medal, Hicham El Guerrouj took another step toward a rare double when he advanced to the final of the 5,000 metres.
In Saturday's final, the Moroccan will try to become the first athlete to win the 1,500 and 5,000 at the same Olympics since Finnish great Paavo Nurmi in 1924.
El Guerrouj confirmed his status as the greatest middle-distance runner when he finally won the 1,500 metre gold late Tuesday.
He advanced by finishing third in his heat, behind two Ethiopians, 10,000 champion Kenenisa Bekele and Gebre-egziabher Gebremariam.
"Last night I didn't sleep because I was excited from winning the gold medal," El Guerrouj said. "I am happy to have qualified for the final, especially because my shoes were too small and they were hurting me. But I have new shoes coming for the final so I should be all right."
Bekele is also aiming for a double: he is trying to become the first man to win both long-distance events at the same games since another great Ethiopian, Miruts Yifter, completed the double in 1980.
The only other men to win both the 5,000 metre and 10,000 metre at an Olympics are Emil Zatopek (1948), Vladimir Kuts (1956) and Lasse Viren (1972 and 1976).
World record holder in the 5,000 metre (12:37.35), Bekele won the heat in 13:21.16. Gebremariam clocked 13:21.20 and El Guerrouj 13:21.87.
El Guerrouj held off Kenya's Bernard Lagat in a thrilling shoulder-to-shoulder sprint in the final straight to win the 1,500 metre and capture the only title to elude him so far.
In pole vault qualifying, world championship silver medalist Okkert Brits of South Africa and former world champion Dmitri Markov of Australia failed to make the final.
