American Katie Ledecky celebrates her 800-meter freestyle win Saturday at the swimming world championships in Singapore. Add to that nine Olympic gold medals and 14 Olympic medals overall. Defending champion and world-record holder Kaylee McKeown of Australia won gold again, taking the 200-meter backstroke in 2:03.33. It was only the second world record set in these championships, the first of which was set by Frenchman Léon Marchand, who shattered the 200 individual medley record (1:52.69) earlier this week. The Americans now have eight gold medals, one ahead of Australia with the championships closing on Sunday.