<page_title> Athletics at the 2012 Summer Olympics </page_title> <section_title> Women </section_title> <table> <cell> 4 × 100 m relay details <col_header> Event </col_header> </cell> <cell> United States (USA) Tianna Madison Allyson Felix Bianca Knight Carmelita Jeter Jeneba Tarmoh* Lauryn Williams* <col_header> Gold </col_header> </cell> <cell> 40.82 (WR) <col_header> Gold </col_header> </cell> </table>
The women's 4 × 100 metres relay event saw a world record: an American team of Tianna Madison, Allyson Felix, Bianca Knight and Carmelita Jeter ran 40.82.