Skip to main content
icon for Mato Grosso Senate Election: 1st Place
Politics·Brazil

Mato Grosso Senate Election: 1st Place

icon for Mato Grosso Senate Election: 1st Place
Politics·Brazil

Mato Grosso Senate Election: 1st Place

Mauro Mendes 68%

Janaina Riva 17.8%

Jose Medeiros 8.7%

Beny Godoy 4.0%

Polymarket
NEW

Mauro Mendes 68%

Janaina Riva 17.8%

Jose Medeiros 8.7%

Beny Godoy 4.0%

Polymarket
NEW
icon for Mauro Mendes

Mauro Mendes

$7,919 Vol.

68%

icon for Janaina Riva

Janaina Riva

$267 Vol.

18%

icon for Jose Medeiros

Jose Medeiros

$103 Vol.

9%

icon for Beny Godoy

Beny Godoy

$93 Vol.

4%

icon for Fávaro

Fávaro

$378 Vol.

4%

icon for Margareth Buzetti

Margareth Buzetti

$79 Vol.

4%

icon for Pedro Taques

Pedro Taques

$64 Vol.

3%

icon for Galvan

Galvan

$167 Vol.

2%

icon for Coronel Darwin

Coronel Darwin

$114 Vol.

2%

icon for Professor Nelson Ferreira

Professor Nelson Ferreira

$135 Vol.

1%

The Brazilian Federal Senate election for Mato Grosso 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).Mauro Mendes (União) leads the race for first place in Mato Grosso's 2026 Senate contest, backed by recent polling that shows him well ahead of rivals for the state's two seats. As former governor who stepped down in March 2026 to run, Mendes benefits from high name recognition and consistent double-digit advantages in surveys conducted through late August. Janaina Riva (MDB) trails as the clearest second, while José Medeiros (PL), Pedro Taques (PSB), and Carlos Fávaro (PSD) occupy the next tier with single-digit support. The October 4 election allows voters to select two candidates, yet trader pricing reflects Mendes' sustained polling edge and limited movement among lower-placed contenders in the final weeks before voting.

The Brazilian Federal Senate election for Mato Grosso 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).
Volume
$9,317
End Date
Oct 4, 2026
Market Opened
Aug 17, 2026, 6:03 AM ET

Resolver

0x69c47De9D...
The Brazilian Federal Senate election for Mato Grosso 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).
The Brazilian Federal Senate election for Mato Grosso 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).Mauro Mendes (União) leads the race for first place in Mato Grosso's 2026 Senate contest, backed by recent polling that shows him well ahead of rivals for the state's two seats. As former governor who stepped down in March 2026 to run, Mendes benefits from high name recognition and consistent double-digit advantages in surveys conducted through late August. Janaina Riva (MDB) trails as the clearest second, while José Medeiros (PL), Pedro Taques (PSB), and Carlos Fávaro (PSD) occupy the next tier with single-digit support. The October 4 election allows voters to select two candidates, yet trader pricing reflects Mendes' sustained polling edge and limited movement among lower-placed contenders in the final weeks before voting.

The Brazilian Federal Senate election for Mato Grosso 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).
Volume
$9,317
End Date
Oct 4, 2026
Market Opened
Aug 17, 2026, 6:03 AM ET

Resolver

0x69c47De9D...
The Brazilian Federal Senate election for Mato Grosso 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).

Related

icon for Will Reinaldo Azambuja win the most votes in the 2026 Mato Grosso do Sul Senate election?

Will Reinaldo Azambuja win the most votes in the 2026 Mato Grosso do Sul Senate election?

74%
icon for Will Janaina Riva win the second-most votes in the 2026 Mato Grosso Senate election?

Will Janaina Riva win the second-most votes in the 2026 Mato Grosso Senate election?

49%
icon for Will Capitão Contar win the second-most votes in the 2026 Mato Grosso do Sul Senate election?

Will Capitão Contar win the second-most votes in the 2026 Mato Grosso do Sul Senate election?

58%

Beware of external links.

Frequently Asked Questions

"Mato Grosso Senate Election: 1st Place" is a prediction market on Polymarket with 10 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Mauro Mendes" at 68%, followed by "Janaina Riva" at 18%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 68¢ implies that the market collectively assigns a 68% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Mato Grosso Senate Election: 1st Place" is a newly created market on Polymarket, launched on Aug 17, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Mato Grosso Senate Election: 1st Place," browse the 10 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Mato Grosso Senate Election: 1st Place" is "Mauro Mendes" at 68%, meaning the market assigns a 68% chance to that outcome. The next closest outcome is "Janaina Riva" at 18%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Mato Grosso Senate Election: 1st Place" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.