Luiz Inácio Lula da Silva (PT) wins the 2026 Brazilian presidential election in the second round (October 25, 2026)
Hit
✦ AI-generated prediction
Published on 28. September 2026
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Predicted for 25. October 2026
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Based on: Historical Cycle
Since neither Lula (PT) nor the PL candidate reaches an absolute majority in the first round on October 4, 2026 (open prediction: runoff confirmed), the runoff is held on the last Sunday of October. Lula is the first-round frontrunner per the open Cassandra prediction. Historically, since 1994 every Brazilian first-round leader has also won the runoff. PT-aligned smaller parties will predominantly transfer their votes to Lula. Aggregate market probabilities on forecasting platforms imply approximately 65% for a Lula second-round victory. The prediction is explicitly conditional on the actual first-round outcome.
Data basis for this prediction
- Offene Cassandra-Vorhersage: Lula (PT) Erstplatzierter im 1. Wahlgang, 4. Oktober 2026
- Offene Cassandra-Vorhersage: Stichwahl bestätigt (kein Kandidat mit absoluter Mehrheit im 1. Wahlgang)
- Historische Daten: Brasilianische Stichwahlen 1994–2022 – immer Sieg des 1.-Wahlgang-Führenden (TSE Brasil)
- Aggregierte Marktprognosen (Polymarket/Metaculus-Struktur): ~65 % Lula-Siegwahrscheinlichkeit Stichwahl
Verdict: Hit
Lula (PT) gewann die Stichwahl am 25. Oktober 2026 mit ca. 51,74–51,79 % der Stimmen gegen Flávio Bolsonaro (PL, ~48,2 %). Er sicherte sich damit eine historische vierte Amtszeit. Die Vorhersage trat vollständig ein: Stichwahl fand wie erwartet statt, und Lula siegte – konsistent mit der prognostizierten Dynamik (erstplatzierter Kandidat aus Runde 1 gewinnt die Stichwahl, PT-Koalitionsunterstützung). Quellen: CNN (https://www.cnn.com/2026/10/26/americas/brazil-election-results-takeaways-latam-hk-intl), ZDF heute (https://www.zdfheute.de/politik/ausland/brasilien-stichwahl-bolsonaro-lula-100.html), CNBC (https://www.cnbc.com/2026/10/26/brazil-lula-win-presidential-election-runoff-vote.html).
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