SAO PAULO, Oct 4 (Reuters) - Right-wing Senator Flavio Bolsonaro and leftist President Luiz Inacio Lula da Silva are headed to a runoff in Brazil's presidential election, pollster Datafolha projected on Sunday.
With 64.81% of ballots tallied, Bolsonaro had 49.58% of the valid votes -- which exclude blank and null ballots -- in the first round against Lula's 42.25%, according to the country's electoral authority.
(Reporting by Gabriel Araujo; Writing by Fernando Cardoso; Editing by Oliver Griffin)