Mauro Mendes, the former Mato Grosso governor running with União Brasil, holds the strongest position for first place in the October 4, 2026, Senate election due to consistent leads in recent polling and high statewide name recognition. Multiple August and early September surveys, including those from Paraná Pesquisas and Real Time Big Data, place Mendes ahead or tied at the top in both first-vote and consolidated scenarios, well ahead of deputy Janaina Riva of the MDB, who trails but remains the clearest challenger for one of the two available seats. Other registered candidates such as Zé Medeiros, Pedro Taques, and Carlos Fávaro register lower single-digit or mid-teen support in the same surveys. The race features ten contenders overall, with the top two vote-getters securing eight-year terms, and no major late shifts or disqualifications have altered the frontrunner dynamic in the final month before voting.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMauro Mendes 63%
Janaina Riva 10.0%
Jose Medeiros 2.9%
Beny Godoy 2.3%
$15,945 Vol.
$15,945 Vol.
Oct 4, 2026
Mauro Mendes
63%
Janaina Riva
10%
Jose Medeiros
3%
Beny Godoy
2%
Galvan
2%
Fávaro
1%
Professor Nelson Ferreira
1%
Margareth Buzetti
1%
Pedro Taques
1%
Coronel Darwin
<1%
Mauro Mendes 63%
Janaina Riva 10.0%
Jose Medeiros 2.9%
Beny Godoy 2.3%
$15,945 Vol.
$15,945 Vol.
Oct 4, 2026
Mauro Mendes
$13,658 Vol.
63%
Janaina Riva
$454 Vol.
10%
Jose Medeiros
$197 Vol.
3%
Beny Godoy
$167 Vol.
2%
Galvan
$290 Vol.
2%
Fávaro
$472 Vol.
1%
Professor Nelson Ferreira
$209 Vol.
1%
Margareth Buzetti
$173 Vol.
1%
Pedro Taques
$138 Vol.
1%
Coronel Darwin
$188 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, the former Mato Grosso governor running with União Brasil, holds the strongest position for first place in the October 4, 2026, Senate election due to consistent leads in recent polling and high statewide name recognition. Multiple August and early September surveys, including those from Paraná Pesquisas and Real Time Big Data, place Mendes ahead or tied at the top in both first-vote and consolidated scenarios, well ahead of deputy Janaina Riva of the MDB, who trails but remains the clearest challenger for one of the two available seats. Other registered candidates such as Zé Medeiros, Pedro Taques, and Carlos Fávaro register lower single-digit or mid-teen support in the same surveys. The race features ten contenders overall, with the top two vote-getters securing eight-year terms, and no major late shifts or disqualifications have altered the frontrunner dynamic in the final month 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).
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).
Market Opened: Aug 17, 2026, 6:03 AM ET
Volume
$15,945End Date
Oct 4, 2026Market Opened
Aug 17, 2026, 6:03 AM ETResolver
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).Mauro Mendes, the former Mato Grosso governor running with União Brasil, holds the strongest position for first place in the October 4, 2026, Senate election due to consistent leads in recent polling and high statewide name recognition. Multiple August and early September surveys, including those from Paraná Pesquisas and Real Time Big Data, place Mendes ahead or tied at the top in both first-vote and consolidated scenarios, well ahead of deputy Janaina Riva of the MDB, who trails but remains the clearest challenger for one of the two available seats. Other registered candidates such as Zé Medeiros, Pedro Taques, and Carlos Fávaro register lower single-digit or mid-teen support in the same surveys. The race features ten contenders overall, with the top two vote-getters securing eight-year terms, and no major late shifts or disqualifications have altered the frontrunner dynamic in the final month 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).
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
$15,945End Date
Oct 4, 2026Market Opened
Aug 17, 2026, 6:03 AM ETResolver
0x69c47De9D...Mauro Mendes, the former Mato Grosso governor running with União Brasil, holds the strongest position for first place in the October 4, 2026, Senate election due to consistent leads in recent polling and high statewide name recognition. Multiple August and early September surveys, including those from Paraná Pesquisas and Real Time Big Data, place Mendes ahead or tied at the top in both first-vote and consolidated scenarios, well ahead of deputy Janaina Riva of the MDB, who trails but remains the clearest challenger for one of the two available seats. Other registered candidates such as Zé Medeiros, Pedro Taques, and Carlos Fávaro register lower single-digit or mid-teen support in the same surveys. The race features ten contenders overall, with the top two vote-getters securing eight-year terms, and no major late shifts or disqualifications have altered the frontrunner dynamic in the final month before voting.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions