Nearly banging elbows with runners on both sides of her, Richards-Ross got stronger over the last 100 meters. She surged to the finish, won by about a body's length and punched her fist when she crossed the line in 49.55 seconds Sunday night to give the United States its first track and field gold medal.

U.S. gymnast Gabrielle Douglas performs on the balance beam during the artistic gymnastics women’s individual all-around competition at the 2012 Summer Olympics, on August 2, 2012. Douglas went on to win the Gold medal in the event. (AP Photo/Gregory Bull).

Great show of sportsmanship from 400 meter dash gold medal winner 19 year old Kirani James. South African double amputee Oscar Pistorius raced in a semi-fianl heat but came in last. Many felt he should NOT compete, but Kirani showed his respect AND support by exchanging bibs with him.