Gold medalists U.S. team, silver medalists Jamaican team and bronze medalists Ukrainian team pose at awarding ceremony of women's 4x100m relay at London 2012 Olympic Games, London, Britain, Aug. 10, 2012. (Xinhua/Gesang Dawa)

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US women set new world record en-route to 4X100 relay gold

LONDON, Aug. 10 (Xinhua) -- The USA women's 4X100 meters quartet smashed the world record as they won the gold medal in the Olympic Stadium on Friday night.

The US quarter of Tianna Madison, Allyson Felix, Bianca Knight and Carmelita Jeter shattered the previous record of 41.37, which had been set by the German Democratic Republic in 1985, to establish a new time of 40.82, over half a second faster.  Full story

Tianna Madison, Carmelita Jeter, Bianca Knight and Allyson Felix (from L to R) of U.S. celebrate after women's 4x100m relay final at London 2012 Olympic Games, London, Britain, Aug. 10, 2012. The U.S. team won gold medal in this event with a new world record of 40.82. (Xinhua/Li Gang) 

The U.S. runners celebrate after women's 4x100m relay final at London 2012 Olympic Games, London, Britain, Aug. 10, 2012. The U.S. team won gold medal in this event with a new world record of 40.82. (Xinhua/Gesang Dawa) 

Carmelita Jeter of U.S. runs across finish line during women's 4x100m relay final at London 2012 Olympic Games, London, Britain, Aug. 10, 2012. The U.S. team won gold medal in this event with a new world record of 40.82. (Xinhua/Li Gang) 

Carmelita Jeter of U.S. celebrates after women's 4x100m relay final at London 2012 Olympic Games, London, Britain, Aug. 10, 2012. The U.S. team won gold medal in this event with a new world record of 40.82. (Xinhua/Li Gang)