Recent national polls conducted in the final weeks before Brazil’s October 4 first round show Flávio Bolsonaro, the Liberal Party candidate and son of the ineligible former president, consistently polling in the mid-to-high 30s percent range. Datafolha, Quaest, and other surveys place him between 34% and 40% against incumbent Luiz Inácio Lula da Silva’s 38–41%, with several results falling inside the margin of error. This positioning reflects a polarized electorate in which Flávio draws strong support from evangelical voters and higher-income groups while facing challenges in consolidating broader centrist backing. Earlier campaign issues tied to financing allegations have receded as a dominant factor, leaving late-cycle dynamics such as welfare program adjustments and institutional tensions as secondary influences. Traders therefore assign the highest probabilities to the 39–42% and adjacent bands as the most likely first-round outcomes.