🏛️ Politics · Next Month

Brazil 2026 presidential election first round (October 4, 2026): Luiz Inácio Lula da Silva (PT) receives more than 37.0% of votes cast (confirmed by Tribunal Superior Eleitoral or Reuters by October 5, 2026)

Hit ✦ AI-generated prediction Published on 15. September 2026 · Predicted for 4. October 2026 · Based on: Statistical Pattern

Probability

58%

Current polls (September 14, 2026, Reuters/Datafolha) show Lula at 38–39%, Bolsonaro at 33–35%. Polymarket trades the Brazilian presidential event at $149.8M volume — strong liquidity signals Lula as clear favorite for the runoff (November 1, 2026, already captured in an existing prediction). The 37% threshold is just below the poll mean, allowing for ±3pp historical Brazilian polling error. A runoff is near-certain since no candidate is expected to exceed 50%. Risk: Bolsonaro mobilization or third-candidate fragmentation could push Lula below 37%.

Data basis for this prediction

Polymarket Brazil Presidential Election: 149,8 Mio. USD Volumen, Lula führend (14. Sept. 2026)
Datafolha/Reuters: Lula 38–39%, Bolsonaro 33–35% (September 2026)
TSE: Erster Wahlgang 4. Oktober 2026 bestätigt
Historischer Polling-Fehler Brasilien: ±3pp (Datafolha-Methodologie)

Verdict: Hit

Lula erzielte im ersten Wahlgang am 4. Oktober 2026 laut mehreren übereinstimmenden Quellen (Wikipedia, CNN, France24, Americas Quarterly, Washington Post) 45,16% der abgegebenen Stimmen – deutlich über der Schwelle von 37,0%. Die Vorhersage trat damit klar ein. Allerdings überraschte Flávio Bolsonaro (PL) mit 47,03% und gewann den ersten Wahlgang entgegen den Umfragen. Lulas Ergebnis lag zwar über dem Umfragemittel von 38–39%, aber er kam entgegen den Erwartungen auf Platz 2. Die Stichwahl findet wie erwartet am 25. Oktober 2026 statt.

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