The first round of women's 100 heats were originally scheduled for T, but with only 20 women in the field, those heats were scratched and everyone will advance to the semifinals Friday night. Those races could be the most competitive of the meet. Shelly-Ann Fraser-Pryce is the defending Olympic champion, while Sherone Simpson and Kerron Stewart were part of a medals sweep for Jamaica in Beijing. But before all that, Veronica Campbell-Brown was considered the island country's best sprinter. She failed to make it out of trials four years ago, though she did go in the 200, where she won her second straight Olympic title.

Four (or more) contenders for three spots: It's a situation some men would like to believe exists, as well.

Actually edging Powell in their heat was Nesta Carter, whose official time was also 10.19. The class of the fourth heat was Michael Frater, a long-time figure on the Jamaican track scene, who owns gold medals from the last three major 400 relays - Beijing, and the 2009 and 2011 world championships.

"As long as I go out and run the best race, I'll be satisfied," Frater said after running 10.09.

Also advancing easily, much earlier in the day, was defending 400-meter hurdle Olympic champion Melanie Walker. She ran her heat in 54.88 seconds, more than a second better than the next-best hurdler.

In the 400 sprint, Novlene Williams-Mills advanced easily on this, the same track where she notched a victory over Sanya Richards-Ross last month at the Jamaican Invitational.