<page_title> 2009 World Championships in Athletics – Women's 400 metres hurdles </page_title> <section_title> Final </section_title> <table> <cell> Melaine Walker <col_header> Name </col_header> </cell> <cell> 52.42 <col_header> Time </col_header> </cell> </table>
Melaine Walker's time of 52.42 s was a record for Championship in Athletics.