Alfa Inteligência / TMC — President - Runoff

National survey of 2,700 voters aged 16 and over, conducted through personal interviews on 18–22 October 2026. Margin of error: ±1.9 percentage points; confidence level: 95%. TSE registration: BR-08496/2026. Figures shown are valid-vote shares: Flávio Bolsonaro 52.0%, Lula 48.0%. The original report gives total-vote shares of 49.9% and 46.0%, respectively, with neither/blank/null at 2.0% and undecided/no response at 2.1%. Published 23 October 2026. Source: original Alfa Inteligência final report.