Quaest / Globo — President - Runoff — 14 Oct 2026 (valid votes)

Brazil presidential runoff. Commissioned by TV Globo and O Globo. TSE registration BR-08729/2026. Fieldwork 10–13 October 2026; 2,154 in-person interviews. Margin of error ±2 percentage points; 95% confidence. Results entered on valid-vote basis: Flávio Bolsonaro 51.1%, Lula 48.9%, calculated by UOL from the rounded total-vote figures of 46% and 44%, excluding blank/null/undecided responses. These are derived valid-vote shares, not directly published unrounded estimates.