The United States won the women's 4x100-meter relay at the 2012 Summer Olympics in London on Friday, and in the process smashed the world record with a time of 40.82 seconds. The foursome of Tianna Madison, Allyson Felix, Bianca Knight and Carmelita Jeter became the first to collectively run under 41 seconds, breaking a 27-year-old record held by East Germany.
After the race, Jeter said she knew from the outset that the relay team could set a world record. Madison did too, but even she was shocked by just how dominant the performance was.
The United States beat a favored Jamaican squad by almost six-tenths of a second for the win. Ukraine took the bronze, setting a national record with a time of 42.04 seconds. Felix has now won two gold medals at the London games. Jeter completed the trifecta with the win, after taking silver in the 100-meter and bronze in the 200-meter.