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🏛️ Politics · Next Month

Brazilian Presidential Runoff (October 25, 2026): Luiz Inácio Lula da Silva (PT) wins re-election against Flávio Bolsonaro (PL) (confirmed by Tribunal Superior Eleitoral or Reuters by October 26, 2026)

Hit ✦ AI-generated prediction Published on 19. September 2026 · Predicted for 25. October 2026 · Based on: Statistical Pattern
Probability
52%

The October 25 runoff is effectively a neck-and-neck race. Datafolha (September 15–17, 2026) shows Lula 46% vs. Flávio Bolsonaro 44% — within the ±2pp margin of error. Quaest (September 3–6) showed 41:41. AtlasIntel puts Bolsonaro narrowly ahead. In round one, Lula leads 39% to 36%. Historically in Brazil since 1994, the first-round leader has always won the runoff. Lula's incumbency advantage, left-coalition support and traditional PT base mobilization give him a structurally slight edge. Aggregated forecasts imply just above 50% for Lula — this is a high-uncertainty scenario. Bookmaker odds place Lula at ~52%.

Data basis for this prediction
  • Datafolha-Umfrage, 15.–17.09.2026: Lula 46 % vs. Flávio Bolsonaro 44 % (±2 PP, US News/World)
  • Quaest-Umfrage, 3.–6.09.2026: Lula 41 % vs. Flávio Bolsonaro 41 % (US News/World)
  • AS/COA Poll Tracker: Brasilianische Präsidentschaftswahl 2026 — aggregierte Umfragedaten Sept. 2026
  • Historische Analyse TSE: Erstplatzierter Runde 1 gewinnt Stichwahl in allen brasilianischen Wahlen seit 1994
Verdict: Hit
Lula gewann die Stichwahl am 25. Oktober 2026 mit 51,79 % der gültigen Stimmen gegen Flávio Bolsonaros 48,21 % (64.256.232 zu 59.826.041 Stimmen), bestätigt durch das Tribunal Superior Eleitoral (Quellen: CNBC, NPR, ZDF heute, ORF). Die Kernaussage der Vorhersage – Lula-Sieg in der Stichwahl – trat ein. Allerdings erwies sich die historische Begründung als falsch: Lula hatte den ersten Wahlgang verloren (45,16 % zu Bolsonaros 47,03 %), gewann aber trotzdem die Stichwahl – das erste Mal seit Rückkehr zur Direktwahl 1989, dass ein Kandidat nach einem Erstrundenrückstand das Rennen gewann. Die prognostizierte Wahrscheinlichkeit von 52 % spiegelte das knappe Ergebnis realistisch wider.
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