Which candidates will advance to Brazil's presidential runoff?

Resolution Criteria

General elections are scheduled to take place in Brazil on October 4, 2026. If no candidate wins outright in the first round, the top two candidates proceed to a runoff. This market will resolve to "Yes" if the listed candidate advances to Brazil's presidential runoff election or otherwise wins outright in the first round. Otherwise, this market will resolve to "No". If the president is decided in the first round of the election but the listed candidate is not the winner or the result of this election isn't known definitively by June 30, 2027, 11:59 PM ET, the market will resolve to "No". 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/).

Luiz Inácio Lula da Silva and Flávio Bolsonaro are the heaviest-backed candidates to advance to Brazil's 2026 presidential runoff, according to Polymarket trading. The market across six named candidates shows volume heavily concentrated on those two, with a cluster of other contenders drawing modest support. Resolution is based on the official first-round result on 4 October 2026, as confirmed by the Superior Electoral Court (TSE).

Market structure

The market covers six individual candidates, each resolving 'Yes' or 'No' on whether they advance to the runoff or win outright in the first round. Volume is heavily concentrated on two outcomes — Lula and Flávio Bolsonaro — with the remaining four candidates drawing comparatively limited backing. Resolution follows the official TSE result. The deadline for definitive resolution is 30 June 2027, after which any undecided markets resolve 'No'.

Background

Brazil holds its next general election on 4 October 2026, with a potential runoff scheduled for later that month should no candidate secure an outright majority. The 2022 election was decided in a runoff between Lula and Jair Bolsonaro, with Lula winning a narrow victory to begin his third presidential term. That contest was one of the most divisive in modern Brazilian history, with Bolsonaro subsequently barred from holding office by the TSE following a finding related to misuse of state media. The 2026 cycle has therefore reopened questions about which figures from both the left and the Bolsonarist movement will carry their respective coalitions into the contest. Lula's popularity has fluctuated during his current term amid economic and political pressures, while the right-wing field remains fragmented.

Key factors

Lula's path to the runoff depends on his approval ratings holding through 2026 and the left consolidating behind his candidacy rather than fielding a credible challenger. His economic record and handling of public finances will be central to voter assessments. On the right, Jair Bolsonaro's continued electoral ineligibility — subject to any legal reversal — shapes whether the Bolsonarist base consolidates behind a family member such as Flávio or Michelle Bolsonaro, or pivots to a figure such as Tarcísio de Freitas, the Governor of São Paulo. Any change in Jair Bolsonaro's legal status before the election would significantly redistribute the right-wing field. The question of whether the first round produces an outright winner also matters: a Lula first-round victory would resolve all non-Lula candidates 'No' regardless of their vote share. Coalition-building, the formal registration of candidacies closer to the election, and any major economic shocks between now and October 2026 all function as decision points.

FAQ