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
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Predicted for 25. October 2026
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Based on: Historical Cycle
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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