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🏛️ Politics · Next Month

Flávio Bolsonaro (PL) wins the Brazilian presidential runoff on October 25, 2026 against Luiz Inácio Lula da Silva (PT) (confirmed by TSE Brazil or AP by October 26, 2026)

Miss ✦ AI-generated prediction Published on 3. October 2026 · Predicted for 25. October 2026 · Based on: Speculative
Probability
55%

Polymarket has ~57% for Bolsonaro, Kalshi likewise ~57%. Runoff polls show a statistical tie: Quaest 42%–42%, Datafolha 47%–45% for Lula. Lula won the first round (October 4) with ~48.4% vs. Bolsonaro's ~43.2%. Markets price in that Bolsonaro's right-wing voter base is more mobilized in the runoff and smaller candidates (Caiado/PSD ~5%) migrate predominantly to Bolsonaro. Slight downward adjustment to 55% from market level 57%: Lula's strength in the first round and the historical pattern of Brazilian first-round leaders frequently winning runoffs are factored in.

Data basis for this prediction
  • Polymarket Brasilien Präsidentschaftswahl 2026: Bolsonaro ~57%, Lula ~43% (Stand 3. Oktober 2026)
  • Kalshi Brasilien Gesamtsieg-Wahrscheinlichkeit: Bolsonaro ~57% (Stand 3. Oktober 2026)
  • Datafolha Stichwahl-Simulation: Lula 47%, Bolsonaro 45% (24. September 2026)
  • Erstwahlergebnis 4. Oktober 2026: Lula ~48,4%, Bolsonaro ~43,2% (TSE Brasilien / Bloomberg)
Verdict: Miss
Lula (PT) gewann die Stichwahl am 25. Oktober 2026 mit ca. 51,75 % gegen Flávio Bolsonaro (PL) mit ca. 48,25 % (≈4,4 Mio. Stimmen Vorsprung, bestätigt durch TSE Brasilien). Die Vorhersage lag falsch: Trotz Polymarket/Kalshi-Odds von ~57 % für Bolsonaro mobilisierte Lula – entgegen der Markterwartung – seine Wählerschaft in der Stichwahl stärker. Sein erster Wahlgang-Vorsprung (48,4 % vs. 43,2 %) erwies sich als stabiler Indikator als die Stichwahl-Umfragen oder die Prediction-Märkte suggerierten. Quellen: NPR (npr.org/2026/10/25/…), CNN (cnn.com/2026/10/26/…), ORF (orf.at/stories/3446153/), ZDF heute (zdfheute.de).
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