Will Mariano Macedo win the most votes in the 2026 Pernambuco Senate election?

Q: Will Mariano Macedo win the most votes in the 2026 Pernambuco Senate election?

Prediction markets currently price this at 10%. A YES share costs 9.8¢ and pays $1 if it happens. That is a return of 920.4% over 1.5mo.

Pernambuco Senate Election: 1st Place$833 liquidity$134 volumecloses 1.5mo

BrazilPoliticsElectionsMain ElectionGlobal Elections

Trade on Polymarket

BUY YES

Cost: 9.8¢
Implied chance: 9.8%
Return if right: 920.4%
Spread cost: 51%

If you put in $100

You get 1020.4 shares at 9.8¢ each.

YES wins: $1020.41 back, a profit of $920.41. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $959.79 of that profit. Without it you would make $1880.20.

Assumes the whole order fills at this price. A large order eats into the book and averages worse.

Buy YES on Polymarket

BUY NO

Cost: 99.7¢
Implied chance: 99.7%
Return if right: 0.3%
Spread cost: 94%

If you put in $100

You get 100.3 shares at 99.7¢ each.

NO wins: $100.30 back, a profit of $0.30. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $5.02 of that profit. Without it you would make $5.32.

Assumes the whole order fills at this price. A large order eats into the book and averages worse.

Buy NO on Polymarket

Chance over time

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Latest: Aug 18, 02:49 AM4 further outcomes not shown

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How this market resolves

The Brazilian Federal Senate election for Pernambuco is scheduled to take place on October 4, 2026. This market will resolve according to the candidate who wins the most valid votes of any candidate at the specified election. Candidates will be primarily ranked by order of valid votes won. If two or more candidates are tied for any position, ties will be broken by alphabetical order of the candidates’ listed full names as they appear in this market. This market will resolve to the candidate that occupies the highest finishing position after applying this ranking. If the result of this election isn't definitively 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., www.tse.jus.br/eleicoes/resultados-eleicoes).