<page_title> Asami Chiba </page_title> <section_title> Personal bests </section_title> <table> <cell> 400 metres (indoor) <col_header> Event </col_header> </cell> <cell> 53.64 NR <col_header> Time (sec) </col_header> </cell> <cell> Tianjin, PR China <col_header> Venue </col_header> </cell> </table>
Asami Chiba made a 400 m indoor record with 53.64 seconds in Tianjin.