Skip to main content
icon for Mato Grosso Senate Election: 2nd Place
Politics·Brazil

Mato Grosso Senate Election: 2nd Place

icon for Mato Grosso Senate Election: 2nd Place
Politics·Brazil

Mato Grosso Senate Election: 2nd Place

Janaina Riva 55%

Mauro Mendes 31%

Jose Medeiros 13%

Galvan 4.1%

Polymarket
NEW

Janaina Riva 55%

Mauro Mendes 31%

Jose Medeiros 13%

Galvan 4.1%

Polymarket
NEW
icon for Janaina Riva

Janaina Riva

$647 Vol.

55%

icon for Mauro Mendes

Mauro Mendes

$79 Vol.

31%

icon for Jose Medeiros

Jose Medeiros

$76 Vol.

13%

icon for Galvan

Galvan

$76 Vol.

4%

icon for Professor Nelson Ferreira

Professor Nelson Ferreira

$76 Vol.

3%

icon for Fávaro

Fávaro

$76 Vol.

3%

icon for Coronel Darwin

Coronel Darwin

$76 Vol.

2%

icon for Margareth Buzetti

Margareth Buzetti

$76 Vol.

2%

icon for Pedro Taques

Pedro Taques

$76 Vol.

2%

icon for Beny Godoy

Beny Godoy

$76 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 second-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 second-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).Recent polling from institutes like Real Time Big Data shows a competitive race for Mato Grosso's two Senate seats in the October 2026 elections, with voters selecting two candidates. Ex-governor Mauro Mendes (União Brasil) frequently leads consolidated first- and second-preference intentions, positioning state deputy Janaina Riva (MDB) as the consistent contender for second place amid technical ties within margins of error. Recent developments include Riva's alliance with the PL and a Federal Police operation targeting Mendes, which he linked to opposition figures including Riva, Taques, and Fávaro. These factors, combined with ongoing campaign positioning and voter consolidation patterns, underpin trader consensus reflected in current market pricing for the second-highest vote-getter.

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 second-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 second-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
$1,334
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 second-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 second-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 second-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 second-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).Recent polling from institutes like Real Time Big Data shows a competitive race for Mato Grosso's two Senate seats in the October 2026 elections, with voters selecting two candidates. Ex-governor Mauro Mendes (União Brasil) frequently leads consolidated first- and second-preference intentions, positioning state deputy Janaina Riva (MDB) as the consistent contender for second place amid technical ties within margins of error. Recent developments include Riva's alliance with the PL and a Federal Police operation targeting Mendes, which he linked to opposition figures including Riva, Taques, and Fávaro. These factors, combined with ongoing campaign positioning and voter consolidation patterns, underpin trader consensus reflected in current market pricing for the second-highest vote-getter.

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 second-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 second-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
$1,334
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 second-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 second-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 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?

57%
icon for Will Mauro Mendes win the most votes in the 2026 Mato Grosso Senate election?

Will Mauro Mendes win the most votes in the 2026 Mato Grosso Senate election?

57%
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?

78%

Beware of external links.

Frequently Asked Questions

"Mato Grosso Senate Election: 2nd 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 "Janaina Riva" at 55%, followed by "Mauro Mendes" at 31%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 55¢ implies that the market collectively assigns a 55% 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: 2nd 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: 2nd 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: 2nd Place" is "Janaina Riva" at 55%, meaning the market assigns a 55% chance to that outcome. The next closest outcome is "Mauro Mendes" at 31%. 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: 2nd 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.