<page_title> List of high school football rivalries more than 100 years old </page_title> <table> <cell> Thornton Academy (Saco, Maine) <col_header> Series Leader </col_header> </cell> <cell> Biddeford High School (Biddeford, Maine) <col_header> Series Rival </col_header> </cell> <cell> 1893 <col_header> Series Began </col_header> </cell> </table>
Biddeford football has a rivalry with Saco's Thornton Academy dating to 1893.