The National Rodeo Championship, Popularly Called Champion Of Chile Or Simply El Chileno, Is The Main Sporting Event Of The. Rancagua, Chile - March 30, 2008: Campeonato Nacional De Rodeo In Rancagua. Rancagua Hosts The Annual Campeonato Nacional De Rodeo, The Nation-Wide Rodeo Championship. The Sport Has Become So Popular That In 2004, More Spectators Attended Rodeo Events Than Professional Football Matches..rodeo Is A Traditional Sport In Chile. It Was Declared The National Sport In 1962. It Has Since Thrived,