U.S. sprinter Allyson Felix has powered to victory in the women's 200-meter race, one of the most anticipated events at the London Olympics Wednesday.

Felix's time of 21.88 seconds beat Jamaica's Shelly-Ann Fraser-Pryce, who was seeking a 100-meter, 200-meter sprint double win.

In men's competition, the world's fastest man, Jamaican Usain Bolt, eased into Thursday's final of the 200-meter sprint, as did his Jamaican rival, Yohan Blake.

Elsewhere, Americans Misty May-Treanor and Kerri Walsh Jennings won their third straight Olympic gold medal in beach volleyball. The duo beat April Ross and Jennifer Kessy in an All-American final.

In men's basketball, Russia, Spain and Argentina advanced with wins in the quarterfinals. The star-studded U.S. team plays Australia in another quarterfinal game.

In other results, China completed a sweep of the four table tennis gold medals with a men's team victory over South Korea. And Hungary won gold medals in the men's 1,000-meter kayak doubles and the women's 500-meter kayak fours.

The U.S. soared past China in the total medal count and held an 81-76 lead at one point. Britain is third with 48.