Misty May-Treanor and Kerri Walsh Jennings won their third consecutive Olympic beach volleyball gold medal, beating April Ross and Jennifer Kessy on Wednesday night in an all-American final.
The Athens, Beijing and now London gold medallists have never lost a match in the Olympics.
May-Treanor and Walsh Jennings won in straight sets, 21-16, 21-16.
It was the Olympic farewell for May-Treanor, who has said she would like to move on.
Kessy and Ross won the silver medal in their Olympic debut.