Oprah talks to Sanya Richards.

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Another golden moment that will go down in Olympic Games history is the powerful women's 4x400 relay run by Olympians Allyson Felix, Monique Henderson, Mary Wineberg and anchor Sanya Richards.

During the final stretch, Sanya barley edged out her Russian competitor to take home the gold. Sanya says she found inspiration by thinking about how hard she and her teammates worked to get to Beijing. "I told them before the race, put me in striking distance," she says. "I was going to definitely bring it home."

What gave Sanya that extra burst of last-minute energy? "When you run for yourself, it's difficult," she says. "When you have three other ladies before you and when you have the USA jersey on, you're running for something so much bigger," she says.

Monique agrees. "You just want to run your heart out and represent," she says.

Overall, the track and field team brought home 23 medals. "I'm so happy to be on the team that was so prepared and so confident [that] we brought home the gold," Allyson says.