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🏛️ Politics · Next Month

Flávio Bolsonaro (PL) wins the Brazilian presidential runoff on 25 October 2026 and is elected President of Brazil (confirmed by Tribunal Superior Eleitoral or Reuters by 26 October 2026)

Miss ✦ AI-generated prediction Published on 30. September 2026 · Predicted for 25. October 2026 · Based on: Historical Cycle
Probability
57%

Polymarket prices Flávio Bolsonaro at 60% to win the Brazilian presidency (September 30, 2026, $158M volume). Metaculus gives Lula a 53% reelection probability (implying ~47% for Bolsonaro). Per Polymarket, a runoff is near-certain (95%). In the October 25 runoff, Bolsonaro benefits from anti-Lula sentiment among parts of the middle class and a difficult economic environment weighing on the incumbent. Own probability calibrated as a weighted average of Polymarket (60%) and Metaculus (~47% for Bolsonaro); no conflict with existing first-round predictions for October 4.

Data basis for this prediction
  • Polymarket: Flávio Bolsonaro gewinnt Präsidentschaft — 60 % (Stand 30.09.2026, Vol. 158 Mio. USD)
  • Metaculus: Lula Wiederwahl 2026 — 53 % (impliziert ~47 % Bolsonaro, Stand 30.09.2026)
  • Polymarket: Stichwahl notwendig — 95 % (nur 5 % Ersterundensieg-Chance, Stand 30.09.2026)
  • Tribunal Superior Eleitoral (TSE): offizielle Wahlbehörde für Ergebnisbestätigung
Verdict: Miss
Flávio Bolsonaro verlor die Stichwahl am 25. Oktober 2026. Lula da Silva gewann mit 51,79 % (64.256.232 Stimmen) gegenüber Bolsonaros 48,21 % (59.826.041 Stimmen) – bestätigt durch das Tribunal Superior Eleitoral (TSE). Bolsonaro hatte zwar die erste Runde am 4. Oktober mit ~47 % zu ~45 % gewonnen, konnte diesen Vorsprung in der Stichwahl jedoch nicht verteidigen. Lula gewann zwischen den Runden über 10,3 Mio. Stimmen hinzu (Bolsonaro nur ~3,7 Mio.). Quellen: NPR (https://www.npr.org/2026/10/25/nx-s1-6016299/brazil-lula-bolsonaro-election), CNBC (https://www.cnbc.com/2026/10/26/brazil-lula-win-presidential-election-runoff-vote.html), ZDF heute (https://www.zdfheute.de/politik/ausland/brasilien-stichwahl-bolsonaro-lula-100.html).
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