<page_title> 1961 Armstrong 500 </page_title> <section_title> Results </section_title> <table> <cell> 167 <col_header> Laps </col_header> <col_header> Class A </col_header> <col_header> Class B </col_header> <row_header> 1 </row_header> </cell> </table>
The 1961 Armstrong 500 event was held over 167 laps.