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Polymarket

Brazil Presidential Election Second Round: Margin of Victory

Live Polymarket oddsUpdated 23:41 UTCCloses 26 Oct 2026 (in 2 days)

Most likely: Other

50%

All outcomes (8)

OutcomeChance24h
Other
50%—
Flávio Bolsonaro <4%
42%—
Flávio Bolsonaro 4-8%
32%▲ 1.5 pts
Lula da Silva <4%
21%▼ 1.0 pts
Flávio Bolsonaro 8-12%
5%▼ 0.4 pts
Flávio Bolsonaro 12%+
2%▲ 0.9 pts
Lula da Silva 4-8%
1%▲ 0.4 pts
Lula da Silva 8-12%
<1%—

How this market resolves

The second round of the presidential election is scheduled to take place in Brazil on October 25, 2026. This market will resolve according to the margin of victory between the top two candidates in the second round of the next Brazil Presidential Election. For the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If a candidate other than Flávio Bolsonaro or Luiz Inácio Lula da Silva receives the most valid votes in the second round, or if the top two candidates receive exactly the same number of valid votes, this market will resolve to "Other". This market will resolve based on the official vote count once the vote count has been made official. If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official. If the result of this election isn't known definitively 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/).

Questions about this market

What are the odds for “Brazil Presidential Election Second Round: Margin of Victory”?

On Polymarket, traders currently price Other as the most likely outcome at 50% (as of 23 Oct 2026). The price of a share in cents is the market's implied probability.

What does the percentage mean?

A price of 62¢ means the market implies a 62% chance. A correct share pays $1 when the market resolves, an incorrect one pays nothing, so the price moves as traders update their expectations.

When does this market resolve?

The scheduled close is 26 Oct 2026. Markets can resolve earlier or later according to their rules, shown on this page.

Where can I trade it?

On Polymarket, where availability depends on your country. PredictDesk does not take bets: it shows live odds from Polymarket and Kalshi side by side.

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Odds are implied probabilities from Polymarket and change continuously; they may be delayed. PredictDesk is an information service, not a broker or exchange, and is not affiliated with Polymarket or Kalshi. Nothing here is financial advice. Prediction markets may not be available in your country.