Crystal Cox

Crystal Cox, married Walker, ( born March 28, 1979 in Norfolk ) is a former American track and field athlete who specialized in the sprint.

Cox was third in 2002 in the 200 - meter sprint at the National Indoor Championships and seventh outdoors. The following year, she reached into the outdoor season, both 200 and 400 meters above the finals of the U.S. Championships and was fifth respectively. In 2004, she won the title over 200 meters and Hall at the U.S. Trials, she finished fourth in the 400 -meter run. So they had qualified for the Olympic Games in Athens, where it was used in the flow in the American 4 x 400 - meter relay. As their country women DeeDee Trotter, Monique Henderson, Sanya Richards and Monique Hennagan won in the final, also Cox received the gold medal.

Once in the BALCO affair appeared also Cox's name, the U.S. Anti- Doping Agency USADA began to investigate them. In 2010 she confessed to having doped with anabolic steroids, and was then retrospectively from 2001 to 2004 subject to a four- year ban. The IOC withdrew its 2012 gold medal.