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Brazil Presidential Election First Round: Margin of Victory — Polymarket Odds

Updated September 23, 2026 · Category: Politics & Elections · Market end date: October 5, 2026

As of September 23, 2026 at 15:49 UTC, the leading outcome is Lula da Silva <5% at 52.5%, followed by Flávio Bolsonaro <5% at 29.3%, Lula da Silva 5-10% at 8.5%. The market has $582.2K in total volume and $13.6K in the last 24 hours.

Current odds

OutcomeProbability24h changeVolume
Lula da Silva <5%52.5%
-0.5 pts$65.8K
Flávio Bolsonaro <5%29.3%
-0.1 pts$52.3K
Lula da Silva 5-10%8.5%
$59.4K
Flávio Bolsonaro 5-10%8.3%
+0.2 pts$38.3K
Lula da Silva 10-15%1.2%
+0.7 pts$53.1K
Flávio Bolsonaro 10%+0.3%
-0.1 pts$32.4K
Lula da Silva 15%+0.2%
$25.0K
Renan Santos Victory<0.1%
-0.1 pts$223.1K
Other<0.1%
$12.0K
Tarcisio de Freitas Victory<0.1%
$10.7K
Ratinho Júnior Victory<0.1%
$10.1K

Total volume $582.2K · 24h volume $13.6K · Liquidity $668.8K. Prices are Polymarket YES-share prices read as probabilities; they are not executable quotes.

30-day price history

0%25%50%75%100%Aug 24Sep 23

Lula da Silva <5% Flávio Bolsonaro <5% Lula da Silva 5-10% · 30-day price history (12-hour points)

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How this market resolves

A presidential election is scheduled to take place in Brazil on October 4, 2026.

This market will resolve according to the margin of victory between the top two candidates in the first 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.

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/).

Summary of the market's published rules. The rules on Polymarket control settlement; check them there before relying on any outcome: open this market on Polymarket.

Related markets

More odds by topic: World Elections odds · Brazil odds

Frequently asked questions

What are the current Polymarket odds for Brazil Presidential Election First Round: Margin of Victory?

As of September 23, 2026 at 15:49 UTC, the leading outcome is Lula da Silva , followed by Flávio Bolsonaro <5% at 29.3%, Lula da Silva 5-10% at 8.5%. The market has $582.2K in total volume and $13.6K in the last 24 hours.

When does the Brazil Presidential Election First Round: Margin of Victory market end?

The event's listed end date is October 5, 2026. Each outcome settles under the market's written rules, summarised on this page, which can differ from the end-date field.

How are these odds calculated?

They are the displayed prices of each outcome's YES share on Polymarket. A price of 60¢ implies roughly a 60% chance. This page refreshes the numbers twice a day, so they are not live quotes.

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Polymarket View, “Brazil Presidential Election First Round: Margin of Victory — Polymarket odds”, September 23, 2026, https://polymarkettrader.com/odds/brazil-presidential-election-first-round-margin-of-victory/ (data: Polymarket, CC BY 4.0).

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