<page_title> List of NASCAR drivers who have won in each of top three series </page_title> <section_title> Driver championships in two of the top divisions </section_title> <table> <cell> 1st Monster Energy Cup Championship </cell> <cell> 1st Xfinity Championship </cell> <cell> Bobby Labonte </cell> <cell> 2000 Champion </cell> <cell> Winston Cup Series </cell> <cell> 1991 Champion </cell> <cell> Busch Series </cell> <cell> Monster Energy Cup Series </cell> </table>
Bobby Labonte won a championship in 2000, at the NASCAR Winston Cup Series (now the Monster Energy NASCAR Cup Series), and a championship in 1991 at the Busch Series (now the Xfinity Series).