<page_title> Mark Garner </page_title> <section_title> Achievements </section_title> <table> <cell> 1988 <col_header> Year </col_header> <col_header> Representing Australia </col_header> </cell> <cell> World Junior Championships <col_header> Competition </col_header> <col_header> Representing Australia </col_header> </cell> <cell> 2nd <col_header> Year </col_header> <col_header> Representing Australia </col_header> </cell> <cell> 4 × 400 m relay <col_header> Competition </col_header> <col_header> Representing Australia </col_header> </cell> </table>
Mark Garner won the silver medal in the 4 × 400 m relay at the 1988 World Junior Championships.