Allyson Felix won her third gold medal of the London Olympics, giving the United States a 20-meter lead after the second leg of the 4x400-meter relay and then watching teammate Sanya Richards-Ross bring home the victory Saturday night.
Sanya Richards-Ross, who won gold in the women's 400 meters Sunday, returned to Olympic Stadium the following day and advanced to the semifinals of the 200 meters.
Sanya Richards-Ross accelerated through the stretch to win the Olympic 400-meter race Sunday for the first U.S. gold in track and field at the London Games.
The IOC is responding to a campaign by a number of athletes who are upset about rules involving personal sponsorships and marketing.
If Saturday was the U.S. Olympic trials' time to highlight the next big thing, then Sunday's men's and women's 400 meters belonged to some of the old track favorites.
A week and a half after winning her first career world indoor title at 400 meters, Sanya Richards-Ross found another reason to celebrate: her husband's new contract with the Jacksonville Jaguars.