Michael Phelps on Sunday broke the record for the most number of gold medals at an individual Olympic Games as he helped the US team win the 4x100m medley relay. ( dpa )
Phelps broke the record previously held by American swimmer Mark Spitz, who won seven gold medals in 1972.
The US won in a world record time of 3:29.34, beating their own world record from 2004 by 1.34 seconds.
Silver went to Australia in 3:30.04, who were also under the old best mark, while Japan took bronze in 3:31.18.
It was the 25th world record broken in the Beijing Water Cube at the Olympics and came in the final swim of the swimming competition.