<page_title> Chronological summary of the 2012 Summer Olympics </page_title> <section_title> Day 8: Sat 4 August </section_title> <table> <cell> Tennis <col_header> Gold medalists </col_header> <col_header> Sport </col_header> </cell> <cell> Women's singles <col_header> Gold medalists </col_header> <col_header> Event </col_header> </cell> <cell> Serena Williams <col_header> Gold medalists </col_header> <col_header> Competitor(s) </col_header> </cell> <cell> United States <col_header> Gold medalists </col_header> <col_header> NOC </col_header> </cell> </table>
Serena Williams won gold in the women's singles tennis tournament for the United States.