<page_title> List of Major League Baseball annual runs batted in leaders </page_title> <section_title> National League </section_title> <table> <cell> 1887 <col_header> Year </col_header> </cell> <cell> Sam Thompson† <col_header> Winner(s) </col_header> </cell> <cell> 166 <col_header> RBI </col_header> </cell> </table>
Sam Thompson was the first to set a single-season RBI record, hitting 166 in 1887.