Recent Quaest and AtlasIntel surveys of Rio de Janeiro voters show Flavio Bolsonaro (PL) holding a clear first-round lead at 37–40 percent, ahead of incumbent President Lula (PT) at 30–41 percent, with all other listed candidates in single digits or lower. This regional edge stems from Bolsonaro family support in the state, where Flavio serves as senator, combined with limited centrist alliances for Lula and fragmentation among smaller contenders. Traders price the outcome accordingly, reflecting the first-round structure on October 4 and the low probability of another name overtaking in the final days. Shifts could still occur from unusually high undecided turnout, last-minute campaign events, or broader national economic or legal developments that alter local preferences before ballots close.