The winner of the 2026 Brazilian presidential election
This snapshot shows a condensed version of Mantic's analysis — the full breakdown is available in the Mantic app. The live forecast may have changed.
Flávio Bolsonaro
80.8%
As of 5 Oct 2026, 09:07 UTC
Outcome probabilities
Rationale
Full accessI predict an 81% likelihood that Flávio Bolsonaro will win the 2026 Brazilian presidential election, driven by his first-round lead over Lula, favorable runoff voter-transfer arithmetic, and historical precedent that no first-round leader has ever lost in Brazilian history.
Forecast record
Question context
A presidential election is scheduled to take place in Brazil on October 4, 2026.
This market will resolve according to the listed candidate that wins this election.
This market includes any potential second round. If the result of this election isn't known by June 30, 2027, 11:59 PM ET, the market will resolve to "Other".
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Brazilian government, specifically the Superior Electoral Court (Tribunal Superior Eleitoral, TSE) (e.g., https://dadosabertos.tse.jus.br/).
Resolution criteria
A presidential election is scheduled to take place in Brazil on October 4, 2026.
This market will resolve according to the listed candidate that wins this election.
This market includes any potential second round. If the result of this election isn't known by June 30, 2027, 11:59 PM ET, the market will resolve to "Other".
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Brazilian government, specifically the Superior Electoral Court (Tribunal Superior Eleitoral, TSE) (e.g., https://dadosabertos.tse.jus.br/).
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