The Prediction Markets

Brazil Presidential Election Second Round: Specific Margin of Victory

Closes
Oct 26, 2026, in 3 days
Traded
$16K
Venues
Polymarket
Prices updated
2 min ago
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What the markets expect

Flávio Bolsonaro 2-4% 25.6%

Next is Flávio Bolsonaro 4-6% at 24.7%. Only Polymarket lists this market, so there is no second price to compare.

Flávio Bolsonaro 2-4% 25.6%Flávio Bolsonaro 4-6% 24.7%Lula da Silva <2% 17.8%Flávio Bolsonaro <2% 14.2%Flávio Bolsonaro 6-8% 4.1%9 others 13.6%

Odds by venue

Fair chance strips out each venue’s built-in margin (its prices add up to more than 100%), then blends the venues by how much has traded there, so the outcomes add up to 100%. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 2 min ago. Ages are as of when this page was built.

  • Polymarket
Flávio Bolsonaro 2-4%
25.6%
Polymarket 28%(25.6% fair)polled, 2 min agoBest Yes 30¢ on Polymarket, $100 pays $333 (3.33x)
Polymarket
Contract
Flávio Bolsonaro 2-4%
Last price
28%
Fair, margin removed
25.6%
As of
Polled 2 min ago
Buy Yes
30¢
Sell Yes
26¢
$100 on Yes pays
$333 (3.33x)
Volume
$4K
Trade this on Polymarket
Flávio Bolsonaro 4-6%
24.7%
Polymarket 27%(24.7% fair)polled, 2 min agoBest Yes 28¢ on Polymarket, $100 pays $357 (3.57x)
Polymarket
Contract
Flávio Bolsonaro 4-6%
Last price
27%
Fair, margin removed
24.7%
As of
Polled 2 min ago
Buy Yes
28¢
Sell Yes
26¢
$100 on Yes pays
$357 (3.57x)
Volume
$2K
Trade this on Polymarket
Lula da Silva <2%
17.8%
Polymarket 19.5%(17.8% fair)polled, 2 min agoBest Yes 20¢ on Polymarket, $100 pays $500 (5.00x)
Polymarket
Contract
Lula da Silva <2%
Last price
19.5%
Fair, margin removed
17.8%
As of
Polled 2 min ago
Buy Yes
20¢
Sell Yes
19¢
$100 on Yes pays
$500 (5.00x)
Volume
$3K
Trade this on Polymarket
Flávio Bolsonaro <2%
14.2%
Polymarket 15.5%(14.2% fair)polled, 2 min agoBest Yes 17¢ on Polymarket, $100 pays $588 (5.88x)
Polymarket
Contract
Flávio Bolsonaro <2%
Last price
15.5%
Fair, margin removed
14.2%
As of
Polled 2 min ago
Buy Yes
17¢
Sell Yes
14¢
$100 on Yes pays
$588 (5.88x)
Volume
$3K
Trade this on Polymarket
Flávio Bolsonaro 6-8%
4.1%
Polymarket 4.5%polled, 2 min agoBest Yes 5.8¢ on Polymarket, $100 pays $1,724 (17.2x)
Polymarket
Contract
Flávio Bolsonaro 6-8%
Last price
4.5%
As of
Polled 2 min ago
Buy Yes
5.8¢
Sell Yes
3.2¢
$100 on Yes pays
$1,724 (17.2x)
Volume
$2K
Trade this on Polymarket
Flávio Bolsonaro 8-10%
3.5%
Polymarket 3.8%polled, 2 min agoBest Yes 7.2¢ on Polymarket, $100 pays $1,389 (13.9x)
Polymarket
Contract
Flávio Bolsonaro 8-10%
Last price
3.8%
As of
Polled 2 min ago
Buy Yes
7.2¢
Sell Yes
0.4¢
$100 on Yes pays
$1,389 (13.9x)
Volume
$402
Trade this on Polymarket
Lula da Silva 2-4%
3.2%
Polymarket 3.5%polled, 2 min agoBest Yes 6.4¢ on Polymarket, $100 pays $1,563 (15.6x)
Polymarket
Contract
Lula da Silva 2-4%
Last price
3.5%
As of
Polled 2 min ago
Buy Yes
6.4¢
Sell Yes
0.6¢
$100 on Yes pays
$1,563 (15.6x)
Volume
$278
Trade this on Polymarket
Flávio Bolsonaro 10-12%
2.4%
Polymarket 2.6%polled, 2 min agoBest Yes 4.8¢ on Polymarket, $100 pays $2,083 (20.8x)
Polymarket
Contract
Flávio Bolsonaro 10-12%
Last price
2.6%
As of
Polled 2 min ago
Buy Yes
4.8¢
Sell Yes
0.4¢
$100 on Yes pays
$2,083 (20.8x)
Volume
$508
Trade this on Polymarket
Flávio Bolsonaro 12%+
1.4%
Polymarket 1.6%polled, 2 min agoBest Yes 1.6¢ on Polymarket, $100 pays $6,250 (62.5x)
Polymarket
Contract
Flávio Bolsonaro 12%+
Last price
1.6%
As of
Polled 2 min ago
Buy Yes
1.6¢
Sell Yes
1.5¢
$100 on Yes pays
$6,250 (62.5x)
Volume
$354
Trade this on Polymarket
Lula da Silva 8-10%
0.9%
Polymarket 1%polled, 2 min agoBest Yes 1.7¢ on Polymarket, $100 pays $5,882 (58.8x)
Polymarket
Contract
Lula da Silva 8-10%
Last price
1%
As of
Polled 2 min ago
Buy Yes
1.7¢
Sell Yes
0.3¢
$100 on Yes pays
$5,882 (58.8x)
Volume
$100
Trade this on Polymarket
Show 4 more outcomes
Lula da Silva 6-8%
0.7%
Polymarket 0.8%polled, 2 min agoBest Yes 1.4¢ on Polymarket, $100 pays $7,143 (71.4x)
Polymarket
Contract
Lula da Silva 6-8%
Last price
0.8%
As of
Polled 2 min ago
Buy Yes
1.4¢
Sell Yes
0.2¢
$100 on Yes pays
$7,143 (71.4x)
Volume
$469
Trade this on Polymarket
Lula da Silva 4-6%
0.6%
Polymarket 0.7%polled, 2 min agoBest Yes 1.2¢ on Polymarket, $100 pays $8,333 (83.3x)
Polymarket
Contract
Lula da Silva 4-6%
Last price
0.7%
As of
Polled 2 min ago
Buy Yes
1.2¢
Sell Yes
0.1¢
$100 on Yes pays
$8,333 (83.3x)
Volume
$250
Trade this on Polymarket
Lula da Silva 10-12%
0.5%
Polymarket 0.5%polled, 2 min agoBest Yes 1¢ on Polymarket, $100 pays $10,000 (100x)
Polymarket
Contract
Lula da Silva 10-12%
Last price
0.5%
As of
Polled 2 min ago
Buy Yes
1¢
Sell Yes
—
$100 on Yes pays
$10,000 (100x)
Volume
$262
Trade this on Polymarket
Lula da Silva 12%+
0.4%
Polymarket 0.4%polled, 2 min agoBest Yes 0.7¢ on Polymarket, $100 pays $14,286 (143x)
Polymarket
Contract
Lula da Silva 12%+
Last price
0.4%
As of
Polled 2 min ago
Buy Yes
0.7¢
Sell Yes
0.1¢
$100 on Yes pays
$14,286 (143x)
Volume
$100
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • Flávio Bolsonaro 2-4%
  • Flávio Bolsonaro 4-6%
  • Lula da Silva <2%

Order books

Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.

Top of book

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Best ask
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Depth · top 8 levels

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Recent trades

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

$
Buy

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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.04 × price × (1 − price) per share (politics rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "Brazil Presidential Election Second Round: Specific Margin of Victory". Flávio Bolsonaro 2-4% leads at 25.6%. Next is Flávio Bolsonaro 4-6% at 24.7%. $16K has traded across 14 outcomes on Polymarket. The market is expected to resolve by Oct 26, 2026.

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

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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