BEIJING - AUGUST 21: Thomas Lurz of Germany competes in the men's marathon 10km swimming event held at the National Aquatics Center during Day 13 of the Beijing 2008 Olympic Games on August 21, 2008 in Beijing, China.

BEIJING - AUGUST 14: Ian Crocker of the United States competes in the Men's 100m Butterfly Heat 8 at the National Aquatics Centre during Day 6 of the Beijing 2008 Olympic Games on August 14, 2008 in Beijing, China.

HD 0587 Huet 16.08.08

BEIJING - AUGUST 04: A member of the Chinese swimming team practices her start at the National Aquatics Center ahead of the Beijing 2008 Olympic Games on August 4, 2008 in Beijing, China.

BEIJING - AUGUST 08: Swimmer Natalie Du Toit of South Africa carries her country's flag during the Opening Ceremony for the 2008 Beijing Summer Olympics at the National Stadium on August 8, 2008 in Beijing, China.

BEIJING - AUGUST 17: Emily Seebohm of Australia starts the backstroke leg of the Women's 4x100m Medley Relay final held at the National Aquatics Centre during Day 9 of the Beijing 2008 Olympic Games on August 17, 2008 in Beijing, China. The Australian team won the gold medal with a world record time of 3:52:69.