<page_title> Mari Kaneko </page_title> <section_title> Mixed martial arts record </section_title> <table> <cell> Win <col_header> Res. </col_header> </cell> <cell> Keiko Matsukawa <col_header> Opponent </col_header> </cell> <cell> Submission (armbar) <col_header> Method </col_header> </cell> <cell> Arkadia <col_header> Event </col_header> </cell> <cell> March 29, 2003 <col_header> Date </col_header> </cell> <cell> 1 <col_header> Round </col_header> </cell> <cell> Hakuba, Nagano Prefecture, Japan <col_header> Location </col_header> </cell> </table>
At the event Arkadia held in Hakuba, Nagano, Kaneko defeated Keiko Matsukawa via armbar submission in the first round on March 29, 2003.