On the eve of the runoff, Quaest put Flávio Bolsonaro at 51% of valid votes and Lula at 49%, and AtlasIntel/Bloomberg had Flávio at 50.8% and Lula at 49.2%, according to Carta Capital.

The consolidated figures of the surveys released on Saturday show Flávio at 51% in Datafolha and Quaest, 50.8% in AtlasIntel/Bloomberg, 50.7% in CNT/MDA and 52% in Gerp, while Lula stands at 49%, 49%, 49.2%, 49.3% and 48%, respectively, according to Brasil de Fato.