Janaina Riva leads the market for second place in Mato Grosso’s October 2026 Senate race at 56.5% amid polling that consistently places ex-governor Mauro Mendes first and her second in consolidated first- and second-vote scenarios. Recent August surveys, including Real Time Big Data and MT Dados, show her holding 14-25% support while benefiting from strong second-preference positioning among undecided voters and those favoring other names such as José Medeiros, Carlos Fávaro, and Pedro Taques. High indecisiveness (often 20-40%), vote splitting across more than a dozen registered candidates, and the mechanics of electing two senators keep the outcome for second place fluid, with separation likely hinging on final campaign momentum and turnout patterns before the October 4 vote.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedJanaina Riva 56%
Mauro Mendes 32%
Jose Medeiros 7%
Fávaro 4.8%
NEW
NEW
Oct 4, 2026
Janaina Riva
56%
Mauro Mendes
32%
Jose Medeiros
7%
Fávaro
5%
Galvan
4%
Beny Godoy
3%
Margareth Buzetti
3%
Coronel Darwin
2%
Pedro Taques
2%
Professor Nelson Ferreira
1%
Janaina Riva 56%
Mauro Mendes 32%
Jose Medeiros 7%
Fávaro 4.8%
NEW
NEW
Oct 4, 2026
Janaina Riva
$4,065 Vol.
56%
Mauro Mendes
$587 Vol.
32%
Jose Medeiros
$114 Vol.
7%
Fávaro
$96 Vol.
5%
Galvan
$96 Vol.
4%
Beny Godoy
$96 Vol.
3%
Margareth Buzetti
$96 Vol.
3%
Coronel Darwin
$96 Vol.
2%
Pedro Taques
$96 Vol.
2%
Professor Nelson Ferreira
$96 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).Janaina Riva leads the market for second place in Mato Grosso’s October 2026 Senate race at 56.5% amid polling that consistently places ex-governor Mauro Mendes first and her second in consolidated first- and second-vote scenarios. Recent August surveys, including Real Time Big Data and MT Dados, show her holding 14-25% support while benefiting from strong second-preference positioning among undecided voters and those favoring other names such as José Medeiros, Carlos Fávaro, and Pedro Taques. High indecisiveness (often 20-40%), vote splitting across more than a dozen registered candidates, and the mechanics of electing two senators keep the outcome for second place fluid, with separation likely hinging on final campaign momentum and turnout patterns before the October 4 vote.
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).
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).
Market Opened: Aug 17, 2026, 6:03 AM ET
Volume
$5,434End 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 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).Janaina Riva leads the market for second place in Mato Grosso’s October 2026 Senate race at 56.5% amid polling that consistently places ex-governor Mauro Mendes first and her second in consolidated first- and second-vote scenarios. Recent August surveys, including Real Time Big Data and MT Dados, show her holding 14-25% support while benefiting from strong second-preference positioning among undecided voters and those favoring other names such as José Medeiros, Carlos Fávaro, and Pedro Taques. High indecisiveness (often 20-40%), vote splitting across more than a dozen registered candidates, and the mechanics of electing two senators keep the outcome for second place fluid, with separation likely hinging on final campaign momentum and turnout patterns before the October 4 vote.
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).
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
$5,434End Date
Oct 4, 2026Market Opened
Aug 17, 2026, 6:03 AM ETResolver
0x69c47De9D...Janaina Riva leads the market for second place in Mato Grosso’s October 2026 Senate race at 56.5% amid polling that consistently places ex-governor Mauro Mendes first and her second in consolidated first- and second-vote scenarios. Recent August surveys, including Real Time Big Data and MT Dados, show her holding 14-25% support while benefiting from strong second-preference positioning among undecided voters and those favoring other names such as José Medeiros, Carlos Fávaro, and Pedro Taques. High indecisiveness (often 20-40%), vote splitting across more than a dozen registered candidates, and the mechanics of electing two senators keep the outcome for second place fluid, with separation likely hinging on final campaign momentum and turnout patterns before the October 4 vote.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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