**Lula and Flávio Bolsonaro remain the clear frontrunners** for Brazil’s October 4 first-round presidential vote, with recent polling aggregates showing the incumbent Workers’ Party candidate at 38–44% and the Liberal Party senator at 34–42%. Other registered candidates, including Ronaldo Caiado, Romeu Zema, Renan Santos, and Augusto Cury, register in the low single digits and show little momentum to crack the top two. Runoff simulations are statistically tied or within the margin of error, reflecting deep polarization and the absence of a viable third-way alternative. Jair Bolsonaro’s ineligibility has consolidated right-wing support behind his son, while Lula’s campaign has focused on welfare expansions and governance record ahead of the October 25 runoff if required. Final campaign events, including scheduled debates, and any late shifts in turnout or undecided voters could still influence first-round margins before the Superior Electoral Court certifies results.