🏛️ Politics · Next Month

Brazil presidential election 2026 first round (October 4, 2026): Flávio Bolsonaro (PL) wins more than 30.0% of valid votes

Hit ✦ AI-generated prediction Published on 16. September 2026 · Predicted for 4. October 2026 · Based on: Statistical Pattern

Probability

67%

Flávio Bolsonaro (PL, son of Jair Bolsonaro) runs as the Bolsonarista candidate after Jair Bolsonaro was barred from public office until 2030 by a TSE ruling. The latest Datafolha poll (September 2026) shows Flávio at ~33% in the first round. Polymarket gives a 76% probability for him finishing second in round one and a 55% overall win probability on $149.8M in trading volume. The 30% threshold is ~3 pp below the polling mean; with typical Brazilian polling errors of ±3–4 pp, the probability is approximately 67%. No contradiction with the open 'Lula >37%' prediction: both values can hold simultaneously.

Data basis for this prediction

Datafolha September 2026: Lula 38 %, Flávio Bolsonaro 33 % (erster Wahlgang)
Polymarket 'Brazil Presidential Election': Flávio Bolsonaro Gesamtsieg 55 %, zweiter Platz 1. Runde 76 % (Stand 16.09.2026, Volumen 149,8 Mio. USD)
TSE/Reuters: Jair Bolsonaro amtsunfähig bis 2030 (TSE-Urteil Juni 2023, bestätigt durch Reuters)
Polymarket Marktdaten: Auflösung 3. Oktober 2026 (erster Wahlgang)

Verdict: Hit

Flávio Bolsonaro (PL) erzielte im ersten Wahlgang am 4. Oktober 2026 laut TSE-Ergebnissen 47,03 % der gültigen Stimmen (56.104.503 Stimmen) – weit über der Schwelle von 30 %. Da weder er noch Lula (45,16 %) eine absolute Mehrheit erreichten, kommt es am 25. Oktober 2026 zur Stichwahl. Die Vorhersage war mit ihrer 30-%-Schwelle sehr konservativ; tatsächlich lag Bolsonaro sogar vor Lula. Quellen: Wikipedia 2026 Brazilian general election, CNBC (04.10.2026), Americas Quarterly.

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