(UPDATES with quotes)
America's Allyson Felix won Olympic gold in the 200 meters sprint on Wednesday.
Felix, the Beijing silver medalist, clocked 21.88 for gold, holding off 100 meters champion Shelly-Ann Fraser-Pryce of Jamaica by two tenths of a second.
Carmelita Jeter of the United States, the 100 meters silver medalist, held on for bronze in 22.14.
"It's been a long time coming, I am so overjoyed, my boyfriend and family, everyone was here. I am so thankful to God for an amazing opportunity," said Felix.
"It's just awesome, I've wanted it for so long. This moment is really priceless."
Fraser-Pryce said she hadn't expected to medal in a second event after the 100 meters.
"Oh my God, I am so grateful. To come here and get a silver, they are all such fast ladies - it's a blessing."
Double Olympic champion Veronica Campbell-Brown, also of Jamaica, failed in her attempt to become the first female track athlete to retain her title twice, finishing fourth.
