Mauro Mendes leads the Mato Grosso Senate race for first place according to trader consensus, reflecting consistent polling advantages from his high name recognition as former governor and recent survey results. The August 21–24 Paraná Pesquisas poll showed him at 52.3% in a multi-candidate stimulated scenario, ahead of Janaina Riva at 33.7%, with José Medeiros, Pedro Taques, and Carlos Fávaro trailing in the 14–19% range. Quaest data from the same period placed Mendes at 36% for the first preference and 24% overall consolidated, ahead of Riva at 18%. With the October 4 election one month away and substantial undecided voters in multiple surveys, the positioning centers on Mendes’ incumbency-style visibility versus a fragmented field of challengers seeking the two available seats.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMauro Mendes 68%
Janaina Riva 17.8%
Jose Medeiros 8.7%
Beny Godoy 4.0%

Mauro Mendes
68%

Janaina Riva
18%

Jose Medeiros
9%

Beny Godoy
4%

Margareth Buzetti
4%

Fávaro
3%

Pedro Taques
3%

Galvan
2%

Coronel Darwin
1%

Professor Nelson Ferreira
1%
Mauro Mendes 68%
Janaina Riva 17.8%
Jose Medeiros 8.7%
Beny Godoy 4.0%

Mauro Mendes
68%

Janaina Riva
18%

Jose Medeiros
9%

Beny Godoy
4%

Margareth Buzetti
4%

Fávaro
3%

Pedro Taques
3%

Galvan
2%

Coronel Darwin
1%

Professor Nelson Ferreira
1%
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
Resolver
0x69c47De9D...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).
Resolver
0x69c47De9D...Mauro Mendes leads the Mato Grosso Senate race for first place according to trader consensus, reflecting consistent polling advantages from his high name recognition as former governor and recent survey results. The August 21–24 Paraná Pesquisas poll showed him at 52.3% in a multi-candidate stimulated scenario, ahead of Janaina Riva at 33.7%, with José Medeiros, Pedro Taques, and Carlos Fávaro trailing in the 14–19% range. Quaest data from the same period placed Mendes at 36% for the first preference and 24% overall consolidated, ahead of Riva at 18%. With the October 4 election one month away and substantial undecided voters in multiple surveys, the positioning centers on Mendes’ incumbency-style visibility versus a fragmented field of challengers seeking the two available seats.
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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