<page_title> Ryo Oishi </page_title> <section_title> Club statistics </section_title> <table> <cell> Japan <col_header> Club performance </col_header> <col_header> Season </col_header> <col_header> Club </col_header> <col_header> League </col_header> </cell> <cell> 1999 <col_header> Club performance </col_header> <col_header> Season </col_header> <col_header> Japan </col_header> </cell> <cell> Mito HollyHock <col_header> Club performance </col_header> <col_header> Club </col_header> <col_header> Japan </col_header> </cell> <cell> Football League <col_header> Club performance </col_header> <col_header> League </col_header> <col_header> Japan </col_header> </cell> </table>
In 1999, Ryo Oishi appeared for Japan Football League club Mito HollyHock.