<page_title> Katie Ledecky </page_title> <section_title> World records </section_title> <table> <cell> 15:36.53 <col_header> Time </col_header> </cell> <cell> 1500 m freestyle (2) <col_header> Event </col_header> </cell> <cell> 15:34.23 <col_header> Time </col_header> </cell> </table>
Ledecky broke the world record in the 1500-meter freestyle with a time of 15:34.23, bettering her previous mark of 15:36.53.