<page_title> List of Japanese records in swimming </page_title> <section_title> Men </section_title> <table> <cell> 50m backstroke <col_header> Event </col_header> </cell> <cell> Junya Koga <col_header> Name </col_header> </cell> <cell> Japan <col_header> Club </col_header> </cell> <cell> World Championships <col_header> Meet </col_header> </cell> </table>
Junya Koga set the Japanese records in the 50 m backstrokes at the 2009 Japan Championships.