Bolsonaro leads in Brazil's presidential run-off: poll

The poll also reported that 51.4 percent of voters would not vote for Haddad, while 31.2 percent said that he is the only candidate they would vote for.

Meanwhile, 42.7 percent say they would not vote for Bolsonaro and 41.5 percent say he is the only candidate they would choose.

A majority of 74.4 percent of the interviewees believed that Bolsonaro will win the election in comparison to only 14.6 percent believed that Haddad will gain victory.

The MDA institute interviewed 2,002 people in 137 municipalities across the country between Oct. 20 and 21, and the survey has a margin of error of 2.2 percentage points.