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🏛️ Politics · Next Week

Brazilian Presidential Election 2026 (October 4, Round 1): Runoff necessary — no candidate reaches absolute majority (50% + 1 vote), confirmed by Tribunal Superior Eleitoral by October 5, 2026

Hit ✦ AI-generated prediction Published on 30. September 2026 · Predicted for 4. October 2026 · Based on: Statistical Pattern
Probability
88%

Latest polls (Datafolha: Lula 40%, Flávio Bolsonaro 36%; AtlasIntel: Lula 45.8%, Bolsonaro 43.4%; Quaest: Lula 37%, Bolsonaro 33%; as of September 22–24, 2026) show no candidate above the 50% threshold. The open platform prediction expects Bolsonaro above 35%, implying a runoff. In Brazil's electoral history since 1989, 6 of 8 presidential elections required a second round (exceptions: FHC 1994 and 1998). Polymarket implies ~88% probability of a runoff (September 30, 2026). Runoff date: October 25, 2026.

Data basis for this prediction
  • Datafolha: Lula 40 %, Flávio Bolsonaro 36 % (22.–24. September 2026, Americas Quarterly/Al Jazeera)
  • AtlasIntel: Lula 45,8 %, Bolsonaro 43,4 % (September 2026, Al Jazeera)
  • Historische Stichwahl-Rate Brasilien: 6/8 Präsidentschaftswahlen zweigängig seit 1989 (Tribunal Superior Eleitoral)
  • Stichwahl-Datum 25. Oktober 2026 offiziell vom TSE bestätigt
Verdict: Hit
Die Vorhersage ist eingetreten. Im ersten Wahlgang am 4. Oktober 2026 erreichte kein Kandidat die absolute Mehrheit: Flávio Bolsonaro (PL) erhielt 47,03 % und Lula (PT) 45,16 % der gültigen Stimmen. Das TSE schloss die Auszählung in der Nacht zum 5. Oktober ab. Eine Stichwahl wurde für den 25. Oktober 2026 angesetzt. Quellen: Wikipedia (2026 Brazilian general election), Carta Capital (TSE encerra apuração do 1º turno), Exame/Apuração 2026.
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