**Flávio Bolsonaro holds a strong position to finish second in Brazil’s October 4 first-round presidential vote, according to recent polling aggregates.** Multiple surveys from Datafolha, Quaest, AtlasIntel, Vox Brasil, and others place him consistently behind incumbent Luiz Inácio Lula da Silva in the low-to-mid 30s percent range, well ahead of fragmented challengers including writer Augusto Cury, Renan Santos, Ronaldo Caiado, and Romeu Zema, who remain in single digits or lower. Flávio has consolidated support from the right-wing base previously aligned with his father, Jair Bolsonaro, who is ineligible to run. Lula leads first-round simulations but faces high rejection rates, while minor candidates show limited momentum in the final days. This distribution underpins trader consensus that Flávio will secure second place and advance to the expected October 25 runoff.